Keyboard commands in map view

Custom key commands provide the following functionality within a map view.

Key/Key Sequence	Function
Home	Selects and centers the root node of the map.
Left Arrow	Selects and centers the sibling map node to the left of the currently selected node.
Right Arrow	Selects and centers the sibling map node to the right of the currently selected node.
Down Arrow	Selects and centers the first (leftmost)child map node, relative to the currently selected node.
Up Arrow	Selects and centers the parent map node, relative to the currently selected node.
Shift+Up Arrow	Collapses the children of the currently selected node, if expanded.
Shift+Down Arrow	Expands the children of the currently selected node, if collapsed.
Ctrl+Up Arrow	Moves the currently selected node toward the top of the window.
Ctrl+Down Arrow	Moves the currently selected node toward the bottom of the window.
Ctrl+Left Arrow	Moves the currently selected node to the left.
Ctrl+Right Arrow	Moves the currently selected node to the right.