Would be a cool new addition and a way for the guests to be inside the enclosure while inside a structure. Have one side attach to the fence where the guests go in and out, and they can also attach to the end of each other to make a multi-windowed tree trunk. Have windows on either side of it with about 75% of the Viewing Platform's FOV or just large enough to slightly overlap each other in a multi-piece build. Also it would be able to go over water and be high enough that the Small theropods and Small herbivores (everything shorter than the Kentrosaurus height-wise) could walk under it easily.