One of 1000000000000 frustrating things I keep running into, as a new PRO-e user, coming from Autodesk Alias, that makes positively no sense and should be in "least you could do" category when it comes to world-class CAD software costing thousands of dollars.
I'm just trying to position an imported part on a corrdinate system. Not assemblying, just incorporating an imported part into my current one. For one, a coordinate system does not provide easy move/rotate controls that should be obvious; you have do dial the numbers in while in edit definition mode. And on top of that, while I'm manipulating the coordinate system, the part that was placed on it disappears. I found no way for it to be shown during manipulation.