I've been following Grant Warwick's hardsurface modeling essentials video on Vimeo, using Blender 2.80. Following the tutorial, I've made a basic hill-type shape by extruding a plane multiple times in edit mode.
Warwick, using 3ds max, was able to select the outer edges of the mesh and "chamfer"/bevel it. I used the knife tool to show what he did:
When I try doing the same in Blender 2.8, however, I can't seem to bevel the outer edge of a plane/mesh. So, I try adding a loop cut instead. But the edge flow doesn't go all the way around the mesh; I can only add one loop cut vertically, or one cut horizontally:
Is there a way to bevel an outer edge of a plane/mesh in Blender? How can I do what I did with the knife tool, to get an even edge without too many manual steps? Is that possible in Blender?