Using the MPL and science instrument modules in other parts

[AlphaMensae]

Ok, I want to make one of the 1.25m pressurized crew tubes from Nertea's Stock Station Parts Expansion into a multipurpose crew hab+mini science lab+materials bay module for a smaller interplanetary ship I'm designing.  I got the crew part ok (that was too easy), but simply copying the appropriate MPL and Materials Bay modules (minus the IVA and animations) from the stock parts doesn't work.  The information shows up in the part list, but when I add the modified part to the test craft I built, I'm not able to right click on it or anything else for that matter, and right clicking still doesn't work once the craft is launched.  So I'm guessing there is more involved than simply copying the modules verbatim.

This is still in 1.0.5.