diff --git a/src/pyhld/__init__.py b/src/pyhld/__init__.py
index c8bec53..2575616 100644
--- a/src/pyhld/__init__.py
+++ b/src/pyhld/__init__.py
@@ -2,6 +2,6 @@
 PyHLD - Python Fiber to the Home High Level Design Tool
 """
 
-__version__ = "0.2.0"
+__version__ = "0.4.0"
 __author__ = "Chris Bomar"
 __email__ = ""
\ No newline at end of file
diff --git a/src/pyhld/cli.py b/src/pyhld/cli.py
index f2cad0f..c1fe9a3 100644
--- a/src/pyhld/cli.py
+++ b/src/pyhld/cli.py
@@ -7,6 +7,9 @@ from .commands.design import run_design
 from .commands.calculate import run_calculate
 from .commands.validate import run_validate
 from .commands.graph import run_graph
+from .commands.multi2single import run_multi2single
+from .commands.poles import run_poles
+from .commands.access_points import run_access_points
 
 console = Console()
 
@@ -47,5 +50,47 @@ def graph(input_file, delete_duplicates):
     """Analyze network connectivity from line shapefile."""
     run_graph(input_file, delete_duplicates)
 
+@main.command()
+@click.option('--input-file', '-i', 
+              type=click.Path(exists=True, path_type=Path), 
+              required=True,
+              help='Input shapefile path')
+@click.option('--output-file', '-o',
+              type=click.Path(path_type=Path),
+              help='Output shapefile path (optional)')
+def multi2single(input_file, output_file):
+    """Convert multipart geometries to single part geometries."""
+    run_multi2single(input_file, output_file)
+
+@main.command()
+@click.option('--segments', '-s', 
+              type=click.Path(exists=True, path_type=Path), 
+              required=True,
+              help='Input segments shapefile path')
+@click.option('--poles', '-p',
+              type=click.Path(exists=True, path_type=Path),
+              required=True,
+              help='Input poles shapefile path')
+def poles(segments, poles):
+    """Validate pole placement for aerial segments."""
+    run_poles(segments, poles)
+
+@main.command()
+@click.option('--segments', '-s', 
+              type=click.Path(exists=True, path_type=Path), 
+              required=True,
+              help='Input segments shapefile path')
+@click.option('--poles', '-p',
+              type=click.Path(exists=True, path_type=Path),
+              required=True,
+              help='Input poles shapefile path')
+@click.option('--access-points', '-a',
+              type=click.Path(exists=True, path_type=Path),
+              required=True,
+              help='Input access points shapefile path')
+def access_points(segments, poles, access_points):
+    """Validate access point placement for underground segments."""
+    run_access_points(segments, poles, access_points)
+
 if __name__ == '__main__':
     main()
\ No newline at end of file
diff --git a/src/pyhld/commands/access_points.py b/src/pyhld/commands/access_points.py
new file mode 100644
index 0000000..4b0b598
--- /dev/null
+++ b/src/pyhld/commands/access_points.py
@@ -0,0 +1,170 @@
+"""Command to validate access point placement for underground segments."""
+from pathlib import Path
+import geopandas as gpd
+from shapely.geometry import Point
+from rich.console import Console
+from rich.progress import Progress, SpinnerColumn, TextColumn
+from rich.panel import Panel
+from rich.table import Table
+
+console = Console()
+
+def check_access_points(segments: gpd.GeoDataFrame, 
+                       poles: gpd.GeoDataFrame,
+                       access_points: gpd.GeoDataFrame,
+                       snap_threshold: float = 1.0) -> tuple:
+    """Check access point and pole placement for underground segments."""
+    # Create/overwrite columns
+    segments['access'] = False
+    access_points['isolated'] = True  # Default to isolated until proven connected
+    
+    # Track issues
+    missing_endpoints = []
+    duplicate_aps = []
+    isolated_aps = []
+    
+    # Process only underground segments
+    underground_segments = segments[segments['Type'] == 'Underground']
+    
+    # Check for duplicate access points
+    for idx, ap in access_points.iterrows():
+        nearby_aps = access_points[access_points.geometry.distance(ap.geometry) <= snap_threshold]
+        if len(nearby_aps) > 1:  # More than itself
+            duplicate_aps.append({
+                'ap_id': idx,
+                'count': len(nearby_aps)
+            })
+    
+    # Check segment endpoints
+    for idx, row in underground_segments.iterrows():
+        line = row.geometry
+        start_point = Point(line.coords[0])
+        end_point = Point(line.coords[-1])
+        
+        # Find poles and APs near endpoints
+        start_poles = poles[poles.geometry.distance(start_point) <= snap_threshold]
+        end_poles = poles[poles.geometry.distance(end_point) <= snap_threshold]
+        start_aps = access_points[access_points.geometry.distance(start_point) <= snap_threshold]
+        end_aps = access_points[access_points.geometry.distance(end_point) <= snap_threshold]
+        
+        # Mark APs as connected if found at endpoints
+        if not start_aps.empty:
+            access_points.loc[start_aps.index, 'isolated'] = False
+        if not end_aps.empty:
+            access_points.loc[end_aps.index, 'isolated'] = False
+        
+        # Check if endpoints have required connections
+        has_start = not (start_poles.empty and start_aps.empty)
+        has_end = not (end_poles.empty and end_aps.empty)
+        
+        if not has_start or not has_end:
+            missing_endpoints.append({
+                'segment_id': idx,
+                'start_missing': not has_start,
+                'end_missing': not has_end
+            })
+            segments.loc[idx, 'access'] = False
+        else:
+            segments.loc[idx, 'access'] = True
+    
+    # Find isolated access points
+    isolated_aps = access_points[access_points['isolated']].index.tolist()
+    
+    return (segments, access_points, 
+            missing_endpoints, duplicate_aps, isolated_aps)
+
+def run_access_points(segments_file: Path, poles_file: Path, 
+                     access_points_file: Path) -> None:
+    """Validate access point placement."""
+    console.print(Panel.fit("🔌 Validating Access Points", title="PyHLD", width=30))
+    
+    progress = Progress(
+        SpinnerColumn(),
+        TextColumn("[progress.description]{task.description}"),
+        console=console,
+    )
+    
+    with progress:
+        # Create tasks
+        read_task = progress.add_task("Reading shapefiles", total=1)
+        check_task = progress.add_task("Checking access points", total=1, visible=False)
+        save_task = progress.add_task("Saving results", total=1, visible=False)
+        
+        try:
+            # Read input files
+            segments_gdf = gpd.read_file(segments_file)
+            poles_gdf = gpd.read_file(poles_file)
+            aps_gdf = gpd.read_file(access_points_file)
+            progress.update(read_task, completed=True)
+            progress.refresh()
+            
+            # Check CRS match
+            if not (segments_gdf.crs == poles_gdf.crs == aps_gdf.crs):
+                console.print("[red]Error: Coordinate systems don't match[/red]")
+                return
+            
+            # Validate access point placement
+            progress.update(check_task, visible=True)
+            segments_gdf, aps_gdf, missing, duplicates, isolated = check_access_points(
+                segments_gdf, poles_gdf, aps_gdf
+            )
+            progress.update(check_task, completed=True)
+            progress.refresh()
+            
+            # Save results
+            progress.update(save_task, visible=True)
+            segments_gdf.to_file(segments_file)
+            aps_gdf.to_file(access_points_file)
+            progress.update(save_task, completed=True)
+            progress.stop()
+            
+            # Report results
+            if missing:
+                console.print(f"\n[red]Found {len(missing)} underground segments missing connections:[/red]")
+                table = Table(title="Missing Connections")
+                table.add_column("Segment ID", justify="right")
+                table.add_column("Missing At", justify="left")
+                
+                for m in missing:
+                    missing_at = []
+                    if m['start_missing']: missing_at.append("Start")
+                    if m['end_missing']: missing_at.append("End")
+                    table.add_row(str(m['segment_id']), ", ".join(missing_at))
+                
+                console.print(table)
+            
+            if duplicates:
+                console.print(f"\n[yellow]Warning: Found {len(duplicates)} duplicate access points:[/yellow]")
+                table = Table(title="Duplicate Access Points")
+                table.add_column("AP ID", justify="right")
+                table.add_column("Duplicates", justify="right")
+                
+                for d in duplicates:
+                    table.add_row(str(d['ap_id']), str(d['count']))
+                
+                console.print(table)
+            
+            if isolated:
+                console.print(f"\n[yellow]Warning: Found {len(isolated)} isolated access points:[/yellow]")
+                table = Table(title="Isolated Access Points")
+                table.add_column("AP ID", justify="right")
+                
+                for ap_id in isolated:
+                    table.add_row(str(ap_id))
+                
+                console.print(table)
+            
+            if not any([missing, duplicates, isolated]):
+                console.print("\n[green]✓ All underground segments properly connected[/green]")
+            
+            # Print summary
+            console.print("\n[yellow]Summary:[/yellow]")
+            console.print(f"• Total underground segments: {len(segments_gdf[segments_gdf['Type'] == 'Underground'])}")
+            console.print(f"• Segments with proper access: {len(segments_gdf[segments_gdf['access']])}")
+            console.print(f"• Total access points: {len(aps_gdf)}")
+            console.print(f"• Connected access points: {len(aps_gdf[~aps_gdf['isolated']])}")
+            
+        except Exception as e:
+            progress.stop()
+            console.print(f"\n[red]Error: {str(e)}[/red]")
+            return
\ No newline at end of file
diff --git a/src/pyhld/commands/graph.py b/src/pyhld/commands/graph.py
index 3fe5700..5634355 100644
--- a/src/pyhld/commands/graph.py
+++ b/src/pyhld/commands/graph.py
@@ -91,6 +91,33 @@ def find_overlapping_segments(gdf: gpd.GeoDataFrame) -> list:
     # Convert to list of tuples with info
     return [(p[0], p[1], overlap_info[p]) for p in sorted(overlap_pairs)]
 
+def find_matching_endpoints(gdf: gpd.GeoDataFrame) -> list:
+    """Find segments that share the same endpoints regardless of direction."""
+    endpoint_pairs = set()  # Store unique endpoint pairs
+    endpoint_info = {}      # Store segment info for each endpoint pair
+    
+    for idx, row in gdf.iterrows():
+        # Get endpoints as a frozenset to ignore direction
+        line = row.geometry
+        endpoints = frozenset([line.coords[0], line.coords[-1]])
+        
+        # Check if we've seen these endpoints before
+        if endpoints in endpoint_pairs:
+            if endpoints not in endpoint_info:
+                # Find the first segment with these endpoints
+                for prev_idx, prev_row in gdf.iloc[:idx].iterrows():
+                    prev_endpoints = frozenset([prev_row.geometry.coords[0], 
+                                             prev_row.geometry.coords[-1]])
+                    if prev_endpoints == endpoints:
+                        endpoint_info[endpoints] = [(prev_idx, prev_row.geometry.length)]
+                        break
+            endpoint_info[endpoints].append((idx, line.length))
+        else:
+            endpoint_pairs.add(endpoints)
+    
+    # Return only the endpoints that have multiple segments
+    return [(pairs, infos) for pairs, infos in endpoint_info.items() if len(infos) > 1]
+
 def delete_duplicate_geometries(gdf: gpd.GeoDataFrame) -> gpd.GeoDataFrame:
     """Remove duplicate geometries from GeoDataFrame while preserving LineStrings.
     
@@ -179,7 +206,7 @@ def run_graph(input_file: Path, delete_duplicates: bool = False) -> None:
                 console.print("• QGIS Row: QGIS's 1-based row number (use this in QGIS expressions)")
                 
                 console.print("\n[yellow]Troubleshooting Tips:[/yellow]")
-                qgis_rows = ", ".join(str(idx + 1) for idx in invalid_rows.index)
+                qgis_rows = ", ".join(str(idx) for idx in invalid_rows.index)
                 console.print("1. Open the shapefile in QGIS")
                 console.print("2. Find invalid features using this expression:")
                 console.print(f"   $id IN ({qgis_rows})")
@@ -242,7 +269,7 @@ def run_graph(input_file: Path, delete_duplicates: bool = False) -> None:
                 
                 console.print(table)
                 console.print("\n[yellow]Troubleshooting Tips:[/yellow]")
-                overlap_expr = " OR ".join([f"$id IN ({i1 + 1}, {i2 + 1})" for i1, i2, _ in overlaps])
+                overlap_expr = " OR ".join([f"$id IN ({i1}, {i2})" for i1, i2, _ in overlaps])
                 console.print("1. Open the shapefile in QGIS")
                 console.print("2. Find overlapping segments using this expression:")
                 console.print(f"   {overlap_expr}")
@@ -254,6 +281,46 @@ def run_graph(input_file: Path, delete_duplicates: bool = False) -> None:
         except Exception as e:
             console.print(f"[red]Error checking for overlaps: {e}[/red]")
 
+        try:
+            matching_endpoints = find_matching_endpoints(gdf)
+            if matching_endpoints:
+                console.print(f"\n[yellow]Warning: Found {len(matching_endpoints)} sets of segments sharing endpoints[/yellow]")
+                
+                table = Table(title="Segments Sharing Endpoints")
+                table.add_column("Set", justify="right")
+                table.add_column("QGIS Rows", justify="right")
+                table.add_column("Length Difference", justify="right")
+                table.add_column("Segment Lengths", justify="right")
+                
+                for i, (endpoints, segments) in enumerate(matching_endpoints, 1):
+                    # Get row numbers and lengths
+                    qgis_rows = [str(idx + 1) for idx, _ in segments]
+                    lengths = [length for _, length in segments]
+                    
+                    # Calculate length difference
+                    length_diff = max(lengths) - min(lengths)
+                    
+                    table.add_row(
+                        str(i),
+                        ", ".join(qgis_rows),
+                        f"{length_diff:.2f}",
+                        ", ".join(f"{length:.2f}" for length in lengths)
+                    )
+                
+                console.print(table)
+                console.print("\n[yellow]Troubleshooting Tips:[/yellow]")
+                endpoint_expr = " OR ".join([
+                    f"$id IN ({','.join(str(idx) for idx, _ in segments)})" 
+                    for _, segments in matching_endpoints
+                ])
+                console.print("1. Open the shapefile in QGIS")
+                console.print("2. Find segments with matching endpoints using this expression:")
+                console.print(f"   {endpoint_expr}")
+                console.print("3. Review segments that share endpoints but have different lengths")
+                console.print("4. Consider removing redundant segments or fixing geometry\n")
+        except Exception as e:
+            console.print(f"[red]Error checking for matching endpoints: {e}[/red]")
+
         # Create network graph
         progress.update(create_graph_task, visible=True)
         G = nx.Graph()
diff --git a/src/pyhld/commands/multi2single.py b/src/pyhld/commands/multi2single.py
new file mode 100644
index 0000000..4714a61
--- /dev/null
+++ b/src/pyhld/commands/multi2single.py
@@ -0,0 +1,85 @@
+"""Command to convert multipart geometries to single part geometries."""
+from pathlib import Path
+import pandas as pd
+import geopandas as gpd
+from rich.console import Console
+from rich.progress import Progress, SpinnerColumn, TextColumn
+from rich.panel import Panel
+
+console = Console()
+
+def explode_multiparts(gdf: gpd.GeoDataFrame) -> tuple[gpd.GeoDataFrame, int]:
+    """Explode multipart geometries while preserving attributes."""
+    # Keep track of original multipart features
+    multi_mask = gdf.geometry.apply(lambda geom: geom.geom_type.startswith('Multi'))
+    multi_count = multi_mask.sum()
+    
+    if multi_count == 0:
+        return gdf, 0
+    
+    # Separate single and multipart features
+    singles = gdf[~multi_mask].copy()
+    multis = gdf[multi_mask].copy()
+    
+    # Explode multipart features
+    exploded = multis.explode(index_parts=True)
+    
+    # Reset index and drop the multiindex columns
+    exploded = exploded.reset_index(drop=True)
+    
+    # Combine back with single part features
+    result = gpd.GeoDataFrame(
+        pd.concat([singles, exploded], ignore_index=True),
+        crs=gdf.crs
+    )
+    
+    return result, multi_count
+
+def run_multi2single(input_file: Path, output_file: Path = None) -> None:
+    """Convert multipart geometries to single part geometries."""
+    console.print(Panel.fit("🔨 Converting Multipart to Singlepart", title="PyHLD"))
+    
+    progress = Progress(
+        SpinnerColumn(),
+        TextColumn("[progress.description]{task.description}"),
+        console=console,
+    )
+    
+    with progress:
+        # Create tasks
+        read_task = progress.add_task("Reading shapefile", total=1)
+        convert_task = progress.add_task("Converting geometries", total=1, visible=False)
+        save_task = progress.add_task("Saving results", total=1, visible=False)
+        
+        try:
+            # Read input file
+            gdf = gpd.read_file(input_file)
+            progress.update(read_task, completed=True)
+            progress.refresh()
+            
+            # Convert multipart to singlepart
+            progress.update(convert_task, visible=True)
+            result_gdf, multi_count = explode_multiparts(gdf)
+            progress.update(convert_task, completed=True)
+            progress.refresh()
+            
+            if multi_count == 0:
+                progress.stop()
+                console.print("\n[green]No multipart geometries found[/green]")
+                return
+            
+            # Save results
+            progress.update(save_task, visible=True)
+            output_path = output_file if output_file else input_file
+            result_gdf.to_file(output_path)
+            progress.update(save_task, completed=True)
+            progress.stop()
+            
+            # Print results
+            console.print(f"\n[green]Converted {multi_count} multipart geometries to singlepart[/green]")
+            console.print(f"[green]Output saved to:[/green] {output_path}")
+            
+        except Exception as e:
+            progress.stop()
+            console.print(f"\n[red]Error: {str(e)}[/red]")
+            return
\ No newline at end of file
diff --git a/src/pyhld/commands/poles.py b/src/pyhld/commands/poles.py
new file mode 100644
index 0000000..2a8a3f8
--- /dev/null
+++ b/src/pyhld/commands/poles.py
@@ -0,0 +1,155 @@
+"""Command to validate pole placement for aerial segments."""
+from pathlib import Path
+import geopandas as gpd
+import numpy as np
+from shapely.geometry import Point
+from rich.console import Console
+from rich.progress import Progress, SpinnerColumn, TextColumn
+from rich.panel import Panel
+from rich.table import Table
+
+console = Console()
+
+def check_pole_placement(segments: gpd.GeoDataFrame, poles: gpd.GeoDataFrame, 
+                        snap_threshold: float = 1.0) -> tuple[gpd.GeoDataFrame, gpd.GeoDataFrame]:
+    """Check pole placement for aerial segments.
+    
+    Args:
+        segments: GeoDataFrame with line segments
+        poles: GeoDataFrame with pole points
+        snap_threshold: Maximum distance in CRS units to consider a pole snapped
+        
+    Returns:
+        Tuple of (modified segments GDF, modified poles GDF)
+    """
+    # Create new columns, overwriting if they exist
+    segments['poles'] = False
+    poles['usage'] = ''
+    
+    # Track problem segments
+    missing_poles = []
+    duplicate_poles = []
+    
+    # Process only aerial segments
+    aerial_segments = segments[segments['Type'] == 'Aerial']
+    
+    for idx, row in aerial_segments.iterrows():
+        line = row.geometry
+        start_point = Point(line.coords[0])
+        end_point = Point(line.coords[-1])
+        
+        # Find poles near endpoints
+        start_poles = poles[poles.geometry.distance(start_point) <= snap_threshold]
+        end_poles = poles[poles.geometry.distance(end_point) <= snap_threshold]
+        
+        # Check for duplicate poles
+        if len(start_poles) > 1 or len(end_poles) > 1:
+            duplicate_poles.append({
+                'segment_id': idx,
+                'start_count': len(start_poles),
+                'end_count': len(end_poles)
+            })
+        
+        # Check for missing poles
+        if len(start_poles) == 0 or len(end_poles) == 0:
+            missing_poles.append({
+                'segment_id': idx,
+                'start_missing': len(start_poles) == 0,
+                'end_missing': len(end_poles) == 0
+            })
+            segments.loc[idx, 'poles'] = False
+        else:
+            # Mark poles as used for mainline
+            poles.loc[start_poles.index, 'usage'] = 'mainline'
+            poles.loc[end_poles.index, 'usage'] = 'mainline'
+            segments.loc[idx, 'poles'] = True
+    
+    return segments, poles, missing_poles, duplicate_poles
+
+def run_poles(segments_file: Path, poles_file: Path) -> None:
+    """Validate pole placement for aerial segments."""
+    console.print(Panel.fit("🏗️  Validating Pole Placement", title="PyHLD", width=30))
+    
+    progress = Progress(
+        SpinnerColumn(),
+        TextColumn("[progress.description]{task.description}"),
+        console=console,
+    )
+    
+    with progress:
+        # Create tasks
+        read_task = progress.add_task("Reading shapefiles", total=1)
+        check_task = progress.add_task("Checking pole placement", total=1, visible=False)
+        save_task = progress.add_task("Saving results", total=1, visible=False)
+        
+        try:
+            # Read input files
+            segments_gdf = gpd.read_file(segments_file)
+            poles_gdf = gpd.read_file(poles_file)
+            progress.update(read_task, completed=True)
+            progress.refresh()
+            
+            # Check CRS match
+            if segments_gdf.crs != poles_gdf.crs:
+                console.print("[red]Error: Coordinate systems don't match[/red]")
+                return
+                
+            # Validate pole placement
+            progress.update(check_task, visible=True)
+            segments_gdf, poles_gdf, missing, duplicates = check_pole_placement(
+                segments_gdf, poles_gdf
+            )
+            progress.update(check_task, completed=True)
+            progress.refresh()
+            
+            # Save results
+            progress.update(save_task, visible=True)
+            segments_gdf.to_file(segments_file)
+            poles_gdf.to_file(poles_file)
+            progress.update(save_task, completed=True)
+            progress.stop()
+            
+            # Report results
+            if missing:
+                console.print(f"\n[red]Found {len(missing)} aerial segments missing poles:[/red]")
+                table = Table(title="Missing Poles")
+                table.add_column("Segment ID", justify="right")
+                table.add_column("Missing At", justify="left")
+                
+                for m in missing:
+                    missing_at = []
+                    if m['start_missing']: missing_at.append("Start")
+                    if m['end_missing']: missing_at.append("End")
+                    table.add_row(str(m['segment_id']), ", ".join(missing_at))
+                
+                console.print(table)
+            
+            if duplicates:
+                console.print(f"\n[yellow]Warning: Found {len(duplicates)} segments with duplicate poles:[/yellow]")
+                table = Table(title="Duplicate Poles")
+                table.add_column("Segment ID", justify="right")
+                table.add_column("Start Count", justify="right")
+                table.add_column("End Count", justify="right")
+                
+                for d in duplicates:
+                    table.add_row(
+                        str(d['segment_id']),
+                        str(d['start_count']),
+                        str(d['end_count'])
+                    )
+                
+                console.print(table)
+            
+            if not missing and not duplicates:
+                console.print("\n[green]✓ All aerial segments have correct pole placement[/green]")
+            
+            # Print summary
+            console.print("\n[yellow]Summary:[/yellow]")
+            console.print(f"• Total aerial segments: {len(segments_gdf[segments_gdf['Type'] == 'Aerial'])}")
+            console.print(f"• Segments with proper poles: {len(segments_gdf[segments_gdf['poles']])}")
+            console.print(f"• Poles used as mainline: {len(poles_gdf[poles_gdf['usage'] == 'mainline'])}")
+            
+        except Exception as e:
+            progress.stop()
+            console.print(f"\n[red]Error: {str(e)}[/red]")
+            return
\ No newline at end of file