In an assembly or model with multiple components it's a massive PITA needing to hide and unhide components for various machining processes. Then when you go back to an old process you need to do it all over again.
It would be much easier if you could choose to make a CAM setup based off everything or if you could create a setup for a single component. This way when you are in the component specific machining op only the operation, setups and toolpaths for that specific component are visible and unless specifically selected otherwise only that component is visible.