OSX drag-n-drop Copy

Rather than right-click to create a duplicate (many contexts - binder, corkboard, editor-selection-to-binder…), then move it elsewhere, it may be good to use Opt-drag to do it in one gesture, fairly common in osx apps. (Not sure if there are other osx conventions that may be similarly useful)

Opt-drag already has a meaning in the binder (it prevents drop-ons for more accuracy), so this will remain as is.
All the best,

Wow, I didn’t know that! Handy.