You probably want to use the G53 command along with G00. Plus toss in a couple of other gcodes for good programming practice
G53 G49 G90 G00 Z0 ; cancel tool length comp, return Z to home position
G53 X... Y... ; position table near door (fill in your desired X and Y posn)
G53 cancels any workpiece offsets, etc for the line it appears on and causes the machine to work in raw machine coordinates.