Rack replacement undo or confirmation dialog

[x.iso]

I've noticed that Racks do not trigger confirmation dialog when replaced with another rack from browser, and replaced rack is not backed up either.
From one point of view, in live situation it's really quick this way, from from another point of view it may spell disaster in same live situation if you accidentally replace wrong rack or drag the rack from browser by accident, with no way to undo right away. (unless replaced rack was previously saved and can be quickly dragged from browser too).

So I think there should be option to trigger confirmation dialog when replacing racks, and also an option to automatically move replaced rack in 'Trash' folder where it could be recovered from.

I'm interested in what others think, since everyone have their own use cases.