e.g. I have a fullscreen image as a page backdrop. Over that image I have a form and button and a few other elements (brics).
When I click on a part of the form, unless I’m exact, I accidently click the background image and that is selected - now I know I can use the layer tree - but a nice alternative would be to have the background bric/bloc ‘locked’ to prevent it from being selectable and to unlock it you need to select it in the tree, then in the right inspector select unlock.
I have searched to see if this kind of functionality is here but I didn’t find it, so if it is, I apologise.