I finally got my head around them this year. The problem for me was leaving “Show Project Presets” checked. I do not understand, and do not foresee ever understanding what they mean by Project Presets.
With that unchecked I create/edit workspaces in the left pane, and the copy them to the right, and they are available in all projects. What a pane. 
but I can use workspaces. (I have a bunch now)