UE 5.2 - Water Body - Hide/Show

Does not seem to change anything, no context. If I select anything its just that specific operation/function. I cannot drag/drop the waterbody into the BP. Not sure how to select it.

If did find this thread but even so I do not understand how to select the waterbody from the scene. The tag method mentioned here does not seem to work either.

Like the original poster I want to simply hide/show it in game with a hotkey.

https://forums.unrealengine.com/t/how-to-hide-show-objects-by-widget/569772/20

Tough being new to all this. An absolute mountain to learn.