Is it possible to assign commands to my mouse (holding down both buttons on a part lets me drag and copy it to a different destination)?
Hi nad welcome,
No, this is not possible in Cubase. Maybe some 3rd party utility.
I got myself a gaming mouse (Logitech G500) to do this kind of stuff. It has 10 buttons and any of these can be assigned to a key-stroke combination using the mouse’s setup program. By using this and Cubase Key Commands you can have a lot of control via the mouse. For example if I assign a button to “alt” then I can hold that while dragging with the left mouse button to copy a part (I just tested it to confirm).