Campaign Settings Not Visible (I'm a GM)

I would like to start using character sheets for my ongoing campaign (we are just now coming back from a lengthy hiatus). However, when I go to my campaign details page, the campaign settings button is not showing up. I am a GM on the game. One of the other players actually created the campaign since we're planning to trade off GM duties, but I've been handling all the Roll20 setup stuff. Is there an additional set of permissions above GM that I don't have since I didn't create the campaign? If so, is there a way to great me those permissions?

You need to be the campaign creator to do certain things such a setting the character sheets for the campaign.

Thanks for the info. That's kinda frustrating, though, but I got the campaign creator to enable character sheets for me.

There isn't very much else besides setting the character sheets, particularly if it's a Non-Mentor group anyway. You aren't missing much, other than the one time you needed to ask the campaign creator to designate the character sheet setting. Just letting you know to reduce frustration or the sense that you might be missing something important.