I’ve noticed that when you’re in Perspective Designer and you left-click and drag to select multiple components, any component that has its ‘visible’ property set to ‘false’ (not currently visible on the view), it does not get selected.
In fact, you cannot select any component at all (even singularly by clicking on it) if it is set to ‘visible:false’. You have to go through the components in the tree, highlighting them one by one, until you find the invisible one.
A person needs to be able to select the invisible components as well to edit them without having to find them and set them to ‘visible:true’.