Yep, another vote for this (not sure if I’m actually voting just by commenting, but still).
I gave up and bought the nvidia shield. The harmony controls everything and I have a wireless keyboard for searches. Just use my ps4 for gaming now.
Also saving $140 a month by ditching cable TV is kinda nice 
Very disappointed that as of December 2016, I still cannot use my Harmony remote to control Plex on a PS4.
I have been wanting this feature since I bought my Harmony Elite over a year ago. My thought was to use my PS4 as my main Plex client as it has the most horsepower and passes the most audio of all my streaming clients (with the exception of my gaming rig, but that is overkill to always have it on). Now I am stuck with the FireTV as my main Plex client, which has it’s own set of problems (mainly audio codecs and not streaming native .mkv rips). Maybe I’ll be a Nvidia Shield convert before long.
Ugh. . . please, please, please implement this!!!
+1, all my apps with PS4 works except for Plex. If you could add bluetooth keyboard support it would be great.
I would love this as well…
