Maybe program another remote key as "Next" (assuming you mean you'd like a key to play the next song in playing now).
I have this key on my Rii i25 remote. The only thing I needed to add is STOP key.
But my point is that Enter key could start playing any song from the same album without using STOP key.
Now I can browse albums, then choose the right one, see the track list and using arrow keys can choose which track want to play. Then push PLAY button on my remote and enjoy song.
But if in the middle of song I will decide that I want to listen another one which is not the next one on the album track list. I have to push STOP button, then use arrows keys to choose another song and then push PLAY button.
It would be more simple if I could use arrow keys and enter/play button on any track without pushing stop button.
For example I'm currently on track 3, but I want to listen track 6 now. So I need to stop track 3 first using stop button. Then use arrow keys to change position on track list. Then use play button on track 6.
It would be just more simple to move from position 3 to 6 and push play button or enter button. But my guess is that it would affect pause function and PAUSE would need to be assigned to something else.