I had a player that has dropped but I don’t see how I can remove him so I can add a new player?
Hello Ironfist3!
While inside of the group as the GM, you should be able to select “Group Settings” at the top of the left bar, which is the icon with multiple people pictured over a cogwheel. From there you can pick “Active Party & Roles” and remove group members from that panel.
Hope that helps!