Yes, its there in Hammer for 1.6, but not SDK. Thats what I thought too when I finally had a use for hide/show objects. Its really annoying. I have to keep saving another map like map, map1, map2 so I can allign objects without losing them. God ive checked every menu where is view objects in secected vis group? Does anyone know?
EDIT: No, your right, it should be in the top right. Guess my question now is where do I change the menu veiw to see the vis groups?