KB Drafting on Vertical Monitor

Vertical monitors are great for viewing items like KB articles while we work on a main landscape oriented screen. When drafting articles under a portrait oriented monitor, the right pane cannot be hidden/collapsed or resized, taking up literally 50% of the screen width with no useful need to be there full time.
It would be good to be able to hide this pane when not needed, similar to the lefthand menu that can be hidden under the "hamburger" icon, so that documents can be viewed at a more normal width.