Start a textual dialog to manage "virtual windows" within the original graphics window. You may split the window into 2 - 4 virtual windows of equal size (or delete them if no longer needed). The dialog allows either horizontal or vertical arranging of those virtual windows. Each of them can be used for a different display. Selecting any mode from the [Draw]-menu will always use the active virtual window highlighted by a frame. Quickly switching between virtual windows is enabled by hotkeys, i.e. pressing the corresponding key [1] ... [4]