| Handles Sender Planes | SP | Sender Planes of each Handle in the AssemblyObject | Plane |
| Handles Types | T | Type of each Handle in the AssemblyObject | Integer |
| Handles Weights | W | Weight of each Handle in the AssemblyObject | Number |
| Handle Occupancy | hO | Handle Occupancy status
-1 occluded
0 available
1 connected | Integer |
| Neighbour Object index | nO | Neighbour Object
index of neighbour AssemblyObject (connected or occluding)
-1 if Handle is available | Integer |
| Neighbour Handle index | nH | Neighbour Handle
index of neighbour AssemblyObject's connected Handle
-1 if Handle is available or occluded | Integer |