i would like some changes:
- a move-mode that only moves already selected things.
- a change after cntr-V or B to this move mode
- a selection-rectangle, that only select inside, but is modifiable to also select touching, may be per modifier key shift or so, or via the direction how the rectangle is drawn (left-right/up-down or reverse).
- the option to filter cells that dont fit in the current view out of the selection