Here is a simple tip on selecting objects which are hidden by other objects in a blender scene.
When you have a lot of objects in your scene you may have difficulties to select one of those even if you rotate the whole view.
I made a simple scene with 4 objects:
and when I look at my objects with this angle of the camera:
it’s hard to select my small cone cause it’s hidden by the cube. Of course I could rotate the view and then select it, but think of a larger environment with more objects added.
The trick to select also the hidden object is to press the Alt – key and then press the right mouse button with the cursor over the object that hides the objects you want to select:
This brings up the Select object menu. I think Blender executes a kind of raycast from your point of view to the mouse cursor in the 3D view and collects all objects the ray hits.
With this nice feature I select the small cone:
This could be useful in some situations, you will see:-)