I would be interested in the same. Now that the Shelly Integration listens to the switch positions I hope something is possible within home assistant to trigger different actions on single, double, long press.
i.e. single press should open/close the cover as usual.
double click could move the cover to a predefined position, or trigger all covers in the room to open/close.
As a matter of fact I have found this very helpful Blueprint. I will try out and let you know if this is a possible solution.