Here's how I scroll through a list of songs using the Enter key.
Place a Dynamic Entity (perhaps a Radio).
Make sure it's Dynamic by setting the STATIC MODE to NO.
Set it's AIMAIN to this script...
;Artificial Intelligence Script
;Header
desc = Radio
;Triggers
:state=0:state=1
:state=1,plrusingaction=1:timerstart,state=2
:state=2,timergreater=800,plrusingaction=1:music=audiobank\user\happybirthday.ogg,state=3
:state=3,plrusingaction=1:timerstart,state=4
:state=4,timergreater=800,plrusingaction=1:music=audiobank\user\dee.ogg,state=5
:state=5,plrusingaction=1:timerstart,state=6
:state=6,timergreater=800,plrusingaction=1:music=audiobank\user\scarified.ogg,state=7
:state=7,plrusingaction=1:timerstart,state=8
:state=8,timergreater=800,plrusingaction=1:music=audiobank\user\silence.wav,state=1
;End of Script
As you can see, I made a User Folder in the Audiobank and placed my songs there.
You can add as many songs as you like, just follow the format.