Read the help file "entering chords".
Is this a Band in a Box song, something new you just created, a midi file you found on the internet or what? You can't just ask an open question, you have to be very specific.
Assuming it's a midi song, you click the little "C" icon on the far left side of your screen. That opens the chord screen and you can change whatever you need to. That screen is the same as the one in Biab. If the song is all audio, you can't do anything except recreate it in midi using the Audio Chord Wizard.

Bob


Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.