Don't like the category? press shift+number key. (or assigned button to cycle through categories like circumflex ^ )
Don't like the view? press number key. (or assigned button to cycle through cameras)
That's an option but I posted a post just a second before you did and my solution is even more simple, I think. Using Shift-# isn't always convenient and you'd still have to use the same numbers all the time which still may be cofusing to some. Assigning 1 and 2 to cycling and 3, 4, 5 up to 0 to categories will make it impossible to make mistakes anymore.