Keyboard Legend

• Alt w focuses first splitbar
• left arrow moves focused splitbar to the left (if horizontal splitter)
• right arrow moves focused splitbar to the right (if horizontal splitter)
• up arrow moves focused splitbar up (if vertical splitter)
• down arrow moves focused splitbar down (if vertical splitter)

• ctrl left arrow collapses the left pane or expands the right one
• ctrl right arrow collapses the right pane or expands the left one
• ctrl down arrow collapses the upper pane or expands the lower one
• ctrl up arrow collapses the lower pane or expands the upper one

• enter accepts current position of the splitbar
• esc returns splitbar to its initial position