Added undo define and checks
Added undo define and checks

JeffProgrammer/Torque3D,Azaezel/Torque3D,JeffProgrammer/Torque3D,John3/Torque3D,rextimmy/Torque3D,John3/Torque3D,GarageGames/Torque3D,GarageGames/Torque3D,chaigler/Torque3D,GarageGames/Torque3D,Azaezel/Torque3D,Bloodknight/Torque3D,chaigler/Torque3D,Azaezel/Torque3D,JeffProgrammer/Torque3D,John3/Torque3D,GarageGames/Torque3D,GarageGames/Torque3D,chaigler/Torque3D,JeffProgrammer/Torque3D,Bloodknight/Torque3D,Bloodknight/Torque3D,ValtoGameEngines/Torque3D,Azaezel/Torque3D,chaigler/Torque3D,Bloodknight/Torque3D,ValtoGameEngines/Torque3D,GarageGames/Torque3D,Azaezel/Torque3D,ValtoGameEngines/Torque3D,chaigler/Torque3D,JeffProgrammer/Torque3D,Bloodknight/Torque3D,John3/Torque3D,Bloodknight/Torque3D,rextimmy/Torque3D,John3/Torque3D,Bloodknight/Torque3D,GarageGames/Torque3D,John3/Torque3D,JeffProgrammer/Torque3D,Bloodknight/Torque3D,Azaezel/Torque3D,John3/Torque3D,chaigler/Torque3D,ValtoGameEngines/Torque3D,John3/Torque3D,chaigler/Torque3D,rextimmy/Torque3D,chaigler/Torque3D,ValtoGameEngines/Torque3D,rextimmy/Torque3D,rextimmy/Torque3D,Azaezel/Torque3D,JeffProgrammer/Torque3D,ValtoGameEngines/Torque3D,ValtoGameEngines/Torque3D,ValtoGameEngines/Torque3D,rextimmy/Torque3D,rextimmy/Torque3D,GarageGames/Torque3D,John3/Torque3D,chaigler/Torque3D,JeffProgrammer/Torque3D,Bloodknight/Torque3D,rextimmy/Torque3D,GarageGames/Torque3D,Azaezel/Torque3D,John3/Torque3D,ValtoGameEngines/Torque3D,rextimmy/Torque3D,Azaezel/Torque3D,ValtoGameEngines/Torque3D,rextimmy/Torque3D,Azaezel/Torque3D