Hidden Lines on Unselected Objects

 From:  scott (SSHWARTS)
7504.1 
I promise this is my last post today (I'm just on MoI roll)...
Is there a way to have the hidden lines show on an deselected object? I'm trying to align a part with the internal structure of another part. Right now I add a construction line to mark the interface but wish for a better way.

If that's not clear...



Here you can see that the part selected has an internal slot. The rail to the right is going to plug into that slot all the way until it stops (the construction line shown here is wrong BTW). So what I'll want to do it move the rail (the gray part) to the left until it meets the end of the slot. (too bad a locked object doesn't show it's hidden lines BTW)

Scott