It's not PMS (Plex Media Server) and it's not hidden. "Preview" is a Preview of the official Plex app you can load as a private channel:
I was apparently confused by the terminology, specifically the word 'app'...
A kludge jiggler:
Just run twice from a commandline/cron job every 1/2 hour. (obviously use the IP of the roku)
curl -d '' http://<IP>:8060/keypress/info
Thanks for that work around.. I did that.. no errors on the script.. but I do not see anything on my screen (in the spectrum app.. ).. have yet to schedule jobs.. but wanted to make sure I'm not missing something
The script only presses the info button (twice). Run the line once, see if the info 'stuff' pops up; run again to exit info screen, if the app has one. Might hear the beep too.
Thanks. I see that it did work. but the spectrum app still closes.. guessing that interface needs interaction..
I've looked and seen different things.. but if I can find a way to send the left arrow (which brings up the guide) and then right arrow to close it.. that might work.. is there a guide somewhere.. or know off hand.. what to send to get that to work?