I agree, I think they should add the ability to change the frame that is currently equipped. It would make it so I could research and look at builds while away from the game.
I'm a big numbers/spreadsheet guy and I would love the ability to look at different builds I could make while on the go. Yea, I could look up builds others have done, but might not have the same mods that others do. Having the ability to equipt mods and "test" builds would be helpful.