Dumb Question: Where's the Seek?

HTPC doesn’t have full mouse support but, there is a bug right now that won’t allow FF or rewind for HTPC. Plex knows about it’ll be fixed in the next update

If you use a keyboard can you skip ahead 30 seconds or back 10 seconds by pushing the arrow key once?

What controller are you using? Did you have to map the remote?
https://support.plex.tv/articles/plex-htpc-input-maps/

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