I find the tabletop's copy & paste very frustrating to use. I'm always surprised by the positions of the pasted objects. Perhaps there is some rhyme to the reason, but this long-time photoshop/illustrator/inkscape user is baffled.
It would be extremely useful to have a modifier key dedicated to duplication: alt-drag to copy, for instance.
Or at least paste the items where the pointer is pointing.
And please change the selection to the _pasted_ items. As it stands my flow is copy, paste, search for the pasted items, do my best to select them (not easy if there were many and they pasted on top of the originals), then drag to desired position.
Sorry to be a complainer, but copy/paste is pretty central to my map-making flow.
Thanks!