Set your promotion thresholds at Settings → Rank Rules. RingOps uses an 8-color striking-arts ladder (white, yellow, orange, green, blue, purple, brown, black) similar to the muay thai prajioud armband system. Each rank has a minimum attendance count; fighters who cross the threshold get a "Ready to test" badge on their profile.
For staff ranks (Coach, Head Coach, etc.) use Settings → Roles & Module Access.