For touch based browsers, it’s not possible to tick/untick any items or enter the item settings for agent. This makes it impossible to change agent settings from Android phones, as the Plex app does support changing settings.
It’s probably related to the entire item being draggable, instead of just the hamburger icon.
https://app.plex.tv/web/app#!/settings/server/xxx/agents
Tested with Chrome and FireFox on Android 5.0.
