OK, thanks.
I dragged a module and it landed in the wrong spot and some other module got deleted from my rack.
Is there any way to undo a change and bring the old module back without having to search for it and manually re-add it?
This is the system I hope to build over the next year or two, in a Goike 104HP x 15U curved ergo case. (I have the Expert Sleepers and Pittsburgh modules already.)