I very often want/need to copy an old map or layout into a new project. However, if there is no map or layout in the aprx, there is now way to paste it. This means I have to insert a new map or layout, then paste my map or layout, and then go back and delete the new one. It's unnecessary and I would very much appreciate the possibility to just paste maps and layouts without having to insert a new and unwanted one.
I know I can import maps and layouts but this all seems like the long way around and it would be much simpler to just copy + paste.