In flowchart mode, you normally need a copy/paste to duplicate as there is no duplicate command. Fortunately, the Ctrl+drag block is very efficient in providing you with multiple copies.
The Right click > Duplicate with Blockly is not as efficient.
The duplicate command is limited to one block. A multiple blocks selection and copy capability would be an appreciated feature.
A workaround for multiple copy of blocks uses the nested blocks principle :
- keep a loop block in a corner
- insert into it all the blocks you need to duplicate
- duplicate the loop with the inserted blocks
- remove the second loop