| Sender Plane | SP | Sender Plane | Plane |
| Receiver Planes | RP | Receiver Planes | Plane |
| Receiver Planes rotations | R | Receiver Planes rotations | Number |
| Handle Type | T | Handle Type | Integer |
| Handle Weight | W | Handle Weight | Number |
| Handle Occupancy | hO | Handle Occupancy status
-1 occluded
0 available
1 connected | Integer |
| Neighbour Object index | nO | Neighbour Object
index of neighbour AssemblyObject
-1 if Handle is available | Integer |
| Neighbour Handle index | nH | Neighbour Handle
index of neighbour AssemblyObject's Handle
-1 if Handle is available or occluded | Integer |