Unfortunately I didn't understand what the table is in your example.
Is it a HotSpot, GameObject, or just part of a texture?

If it's HotSpot, then you can handle click events to do some action (in your case, hide it).
https://infinity-code.com/doxygen/upano … 1f1de5bc42

If it's a GameObject, then you can handle its events using a MonoBehaviour.
https://docs.unity3d.com/ScriptReferenc … utton.html

If this is part of the texture, then you can check the pan and tilt of the cursor on the panorama, and if there is a table (you can check this by rectangle or polygon), then change the texture to a texture without a table.