It’s in the top right where your user icon is. Instead of Switch Users, you select Settings.
You posted this thread in the Plex Media Player forum and this doesn’t apply to the web UI within PMP currently. This interface: https://downloads.plex.tv/plexmediaplayer/1.2.2.555-d1355001/PlexMediaPlayer-1.2.2.555-d1355001-windows-x64.exe
If you are definitely running Plex Media Player, hit Shift+F11 to switch to TV mode.
