Gridx a11y keyboard guidance

Operation	keyboard	Required modules	Description
Undo	CTRL+Z	Edit	When focus is on gridx, press the key to undo last change
Redo	CTRL+Y	Edit	When focus is on gridx, press the key to redo next change
Save	CTRL+S	Edit	When focus is on gridx, press the key to save all the changes
Change editing status	ENTER	Edit	When focus is on gridx, press the key to: 1. apply current edit in editing statusenter 2. editing status when in non-editing 1. status
Select Row	SPACE	select.Row / extendedSelect.Row	when focus is on a cell and triggerOnCel is true, press the key to select the current row
Selct Columnn	SPACE/ENTER	select.column / extendedSelect.column	When focus is on a specific column header cell, press the key to select current column.
Select Cell	SPACE	select.cell / extendedSelect.cell	Select current cell
Toggle sort	ENTER	SingleSort	When focus is on a specific column header cell, press the key to sort.
Toggle sort	ENTER	NestedSort	When focus is on the nested sort button of a specific column header cell, press the key to toggle betweetn DESC, ASC sort and no sort
Enlarge column width	CTRL+SHIFT+->	ColumnResizer	When focus is on a specific column header, press the key combination to enlarge column width
Reduce column width	CTRL+SHIFT+<-	ColumnResizer	When focus is on a specific column header, press the key combination to reduce column width
Open/Close header menu	ENTER	HeaderMenu	Toggle between open or close header menu
Move focus	<- or ->	HeaderRegion	Move focus
Select all	SPACE	IndirectSelect	When focus is on the header of row header and the argument all is true, press the key to select all
Select all	CTRL+A	IndirectSelect	When focus is on a specific row, press the key to select all
Select all	SPACE	IndirectSelectColumn	When focus is on the cell of the header whose colid is indirectSelect, press the key to select all
Focus elements	F2	CellWidget	When focus is on the cell, press the key to focus the first focusable element in the cell.
Trigger Click	ENTER	PagedBody	When focus is on 'Load More' and 'Load Previous' button, press the key to trigger load more or load previous function.
Move focus	UP_ARROW & DOWN_ARROW	RowHeader	When focus is on a specific row header, press the key to move focuse up and down.
Collapse/expand	CTRL + ->	Tree	When focus is on a specific cell node that has a collapse or expand icon, press the key combination to 1. expand tree in LTR mode 2. collapse the tree in RTL mode.
Collapse/expand	CTRL + <-	Tree	When focus is on a specific cell node that has a collapse or expand icon, press the key combination to 1. expand tree in RTL mode 2. collapse the tree in LTR mode.
Scroll	HOME	VirtualVscroller	When focus is on grid vertical scroller bar, press the key to scroll to the first row.
Scroll	END	VirtualVscroller	When focus is on grid vertical scroller bar, press the key to scroll to the last row.
Scroll	PgUp	VirtualVscroller	When focus is on grid vertical scroller bar, press the key scroll up some rows.
Scroll	PgDn	VirtualVscroller	When focus is on grid vertical scroller bar, press the key scroll down some rows.