There’s already an existing suggestion asking for Plex to make local extras for all tiers of a tv show accessible in all apps. From what I remember, only the mobile apps are supporting that at the moment (for Plex HTPC and the smart tv apps, season-level extras will be displayed as a separate hub for each episode of a season).
Please comment/vote in that thread in order to help us avoid distracting or cannibalizing votes.
