/3/ - 3DCG

Fusion 360 stupid question: How do you get it to select through the object?

The tutorial I'm watching is a slightly older version I think and he (Lars Christiansen) just hovers his mouse in the two positions show (*left older) and selects either the inside edge to fillet or the inside wall to push/pull to.

Nothing inside will select for me so I'm constantly shift+middle button around trying to get access to inside geometry. I can sometimes go in the corner and just pick up a pixel to select something I cannot really "see" but on the tutorial it's just hover and "the software just knows what you want to select".

What do?