Hi,
Glad you got it working, good idea about the Atlas remote! It may be that your Kameleon doesn't support 5 digit codes as they are a bit newer. Also re the 1309, there is already an existing code 1309, and it may be that you downloaded the "real" 1309 which would not work. You need 2309, but then renumbered, which by standard would be renumbered to 1309 but would still be acutally 2309. Makes sense eh? ;-)

Anyway in 2309, there are two separate codes for Preset Up and Down, which should be worth a try. You may even find them on the Channel Up and Down keys, but if not the codes are:

Preset Up 16818
Preset Down 16754

You'll probably need to go the Atlas route again, but hopefully these should work for you.

Good luck!