Ability to duplicate and bulk edit multiple fields

Right now, OpnForm only allows duplicating fields one by one, which makes building larger forms slower. It would be very useful to:

1. Select multiple fields at once to duplicate (keeping their order and settings).

2. Edit common settings in bulk for the selected fields — for example, toggling them to hidden, applying the same show if… condition, or changing another shared property.

This would save a lot of time when creating repeated sections (e.g., question groups) and when adjusting form logic across multiple fields.