Based on exactly what you're saying, it sounds like the input codes are meant to change all inputs at the same time. Maybe someone here has codes that will work right.

If you go to [Link: files.remotecentral.com] and enter Lifestyle 38 in the Search box, nine files will be found. Now, none of these are exactly what you want; most are files for some kind of Pronto. This will lead you to investigate how to use the Pronto programming files on this site to look at the commands, or to work out how to use the URC Universal Browser to copy commands from other remotes' files. This is not the simplest thing in the world, but it looks like maybe the info is there.