So this time I tested the real updated version in combination with Wound overlays. The following happens when extra selection mode is enabled, (N)PC tokens and spell tokens move together at any point they overlap. Shift dragging then resets the (N)PC token position. It's possible that this does not happen every time, not sure about that.
Animated GIF:
https://i.imgur.com/uIlrCC1.gif
On a side note: FGU's token selection mode seems to be working with (N)PC + spell tokens (either stacked or just in fixed position to one another).