If I select one or more components and while dragging them click ALT, in Grasshopper for Rhino for Windows it copies the components. This isn’t working in Grasshopper for Mac, isn’t a bug or is yet to be implemented?
This feature has yet-to-be-ported to Grasshopper for Mac. Logged in MR-2560. Thanks for reporting this!
Is drag + ALT implemented on Mac grasshopper yet? I looked at your note and it said it would be completed in 5.2. Thanks!
Yes, it should be working now.