@gumbo23
1. open the two racks in two different browser windows.
2. be sure Keyboard Shortcuts are enabled
3. in the first window hover over a module and press c
4. in the second window hover over the rack (important) and press v

-- modulargrid

Wouldnt it make sense to be able to have two separate cases on the same page ? Of different height and length. Or is it too hard to code ?
I miss that