Hi after I joined one group board, how to copy my pins there?
I googled it the tips
How to Delete, Edit, or Move a Pin on Pinterest
Step 1: Go the board with the pins you'd like to move, copy, or delete.
Step 2: Click the "Move Pins" button in the top right-hand corner.
Step 3: Select the pins you'd like to move, copy, or delete by clicking on the check mark in the pin's top right-hand corner.
But the issue is that there is really no buttons of "Move Pins" "Copy Pins" at the top right corner of the board.