Here the categories are combined into one. For categories as ingame go to Editor Modes
Admin Models
Cargo
Ceilings
Cockpits
Doors
Elevators
Engines
Floors
Furniture
Life Support
Lights
Pillars
Signs
Stairs
Systems
WalkWays
Walls
Weapons
Windows
111 Tiles
211 Tiles
221 Tiles
222 Tiles
Container Tiles
Sensors
Power
Thrusters
Industrial