for building new weight for example (with all information i need to made and make it on a new weight)
If you want to keep the outlines instead of drawing them from scratch, duplicate the master from which you want to keep the outlines (and kerning pairs, etc.) instead of creating a new empty master.
Excellent, thank you very much.
Or use ‘Paste Special’ (hold down the option button in the Edit menu).
Very helpful solution, thanks.