When you select a material to hide in some view, if the hierachy in sketchup does not come correctly, sometimes you hide other parts of the model that you do not want to hide, in that moment I bage for undo button and start cry! To solved it, you need to change the view and find carefully your mistake to fixed! A big waste of time!
Please put a UNDO button.
I think I found a ‘bug’ relate with hide objects in views: when I hide an object with some texture, if other objects have the same texture, they hide too! Please check it out!
But always will be very wellcoming get UNDO button