Who would benefit?
All Aha! users
What impact would it make?
More easily and seamlessly brainstorm / design whiteboards rather than having to copy / paste every time.
How should it work?
Enable the CTRL D function within a Whiteboard.
There are a few ways to quickly duplicate objects in whiteboards today:
Hold the Option key while you click and drag an object
Hover over one of the four blue dots around an object, and click when it transforms into a + sign
Give these a try and let us know if there are other options that would be helpful, as well!