DSP SPRM audio and subtitle question

I have a DSP 4 project that has two subtitle tracks and two audio tracks. My question is how can I make the audio and subtitle menu buttons reflect which track/stream is active? Should I use a SPRM condition? I can make it work using a GPRM condition as long as the tracks are selected through one of the menus. However, if the "subtitle" or "audio" button is used on the remote, the menu won't reflect it.

Any help or suggestions are appreciated-