Step-by-step: How to promote a player to co-GM

I just started helping my friend create an adventure but I can't figure out how to promote him to co-GM so he can actually help work on it.  I tried hovering over his portrait at the bottom of the screen in-game and in chat in-game as well as out-of-game.  Is there a certain portrait I have to hover over or perhaps a different way to promote to co-GM?

The Players sidebar is where you promote co-GMs. <a href="https://wiki.roll20.net/Game_Management#Players" rel="nofollow">https://wiki.roll20.net/Game_Management#Players</a>

You don't do this in-game, it's on the main screen for the game, without joining the game. &nbsp;Portraits are in the top right, first yours as the GM, then the players. &nbsp;If you hover your mouse over one of these, you should see 2 options appear: &nbsp;Promote to GM, and Kick from Game. &nbsp;Aren't you seeing that? This page from the Wiki talks about it. &nbsp;It should be available at all subscription levels. <a href="https://wiki.roll20.net/Game_Management#Joined_Players" rel="nofollow">https://wiki.roll20.net/Game_Management#Joined_Players</a>

That did it. &nbsp;No problem. &nbsp;Thanks to both of you!

Since your question has been answered I'll now close this thread. Happy gaming.