got 2 issues when using copy/paste.
First it doesn't always work (this is generally happening when a single unit is connected, in case more than one are it's generally ok). This is not consistent so I can't really give an exact repro step, but selecting a single unit and Ctrl+C -> Ctrl+V tends to make it happen at some point)
Second, it would be nice if paste location would depend on the cursor (map cursor to top left of selection rectangle). Pasting in center of the viewport does not make too much sense.
Customer support service by UserEcho