Blender 2.8: How to select edges behind other edges when in numpad 1 mode In a tutorial I am seeing the guy go into 'Mesh Mode' where he is able to select edges behind other edges.

However I am unable to do this in 2.8. 

When I select it just selects the closest edge.
To be able to select occluded geometry you must enable the viewport option X-Ray.

Either use the button on the 3D View Header or press access the with Z key Shading Pie Menu > Toggle X-Ray.