Support feedback: Having two modules I selected copy on a class in package de.x.y and selected paste in the other module. I tried to edit de.x.y as target package which of course did not worked. But editing the target package to de.x copied the class to the original module and not to the target module. The destination package did only exist in the source module. The select target package does implicitly reference the module where this package exist even if another module was selected.