I'm offline, I think I figured out though. with the 1734-AENTR you have to go into module properties and set the chasis size attatched to that AENTR within the hardware tree I guess. Never encountered something like that before. I couldnt add I/O to it because the chasis is defaulted to 1, which would mean the AENTR is taking that 1 slot up. Crazy stuff.