Settings, invite a friend is one way. I’m pretty sure I saw a shortcut somewhere too. Drop down menus are different between web and extension. 

 I try in each option and don’t find it. I did it in Mac and mobile version https://image.nostr.build/18e8c978b114bf8b035f8576720fef9026fa77b7838d96695296372603b3af75.jpg