Option to distinguish between Finger and Apple Pencil Input

When Apple Pencil is connected to iPad and used for drawing in Vectornator, it would be great to use finger input differently.

For example when using pen/Bézier/brush tool with Pencil, tapping with one finger on the canvas could temporarily trigger the selection tool, to quickly move/select objects while drawing, without explicitly switching tools all the time.

As soon as you let go with your finger, you could continue with the selected tool and Apple Pencil.

Conversely placing two fingers on the canvas while drawing with pencil could trigger another action.
Finger input could also act as an eraser, when using Apple Pencil (some painting apps work that way).

It would be really to be able to customize these modifiers / actions.