I have the plex media player on my computer and the plex app on my android phone I was wondering if I can use my phone to control what my computer is playing like if I want to watch a show or do watch together so I don’t have to get out of bed and can pick new content from my bed
Not sure about watch together, but you can cast/fling from your phone to other Plex clients.
For PMP, casting to it from another Plex client only works in Desktop mode.