Duplicating master into new master

Hi there,
I’m really new to Glyphs so sorry for asking stupid questions maybe.
I’m recreating a already existing font and imported it to Glyphs. With that “Regular” weight I want to create another master, with all the already existing glyphs, so I just want to duplicate all the metrics and the glyphs into it. I know I can view the other master through the layers panel, but I just want to have the already drawn glyphs and metrics/spacings… in it. How do I do that?


Go to File > Font Info > Masters, select the master you want to duplicate, click on the plus button in the bottom left corner, and choose Duplicate Selected from the menu that pops up.