Mix It Up Overlays

I had no idea you could do this and it leaves me room for SO MANY ideas! Thank you so much!

I’ve been trying to figure this stuff out but Overlay (image and Video) is never an option for me. I don’t get why it doesn’t show up.

Thank you for your help!

I do the overlays but it still tell me to do it when I try to set up channel points redeemed