Kepler

The copy/paste of a selected part of a graph is inconvenient to use because
- the copy usually overlaps with the original graph
- the original selection remains active after the paste action.
Thus, dragging the copy to a new location is impossible. Dragging the individual
elements of the copy is cumbersome and annoying.

Suggestion: let the copy be selected, so it can be dragged at once (similarly as
Powerpoint works when copying items).