Hasn’t been implemented yet and we won’t know when/if it will until it appears.
This was also mentioned by tom80H in the other post you made about this.
Subscribe to the announcement thread for Android, Plex for Android, to get notifications when there is a new version and what has been add/changed/fixed. At the bottom of the thread after the very last post change the drop down that says normal to watching and you’ll get a notification when a new post has been made there.
-Shark2k
