Normaly to select terms in the  CURRENT EQUATION you simply click on the
term in question. However in some situations this is awkward.

These five small buttons provide an alternative way of selecting sections of the
equation in the main window.

The central button selects the whole expression.

The Down arrow narrows the selection, Up broadens the selection.

Left and right cycle through all possible selections at this level.

These buttons have keyboard Shortcuts:-

	Broaden Selection = 8
	Narrow  Selection = 2
	Cycle Left        = 4
	Cycle Right       = 6
	Select All        = 5
	
{ the shortcuts are based on the numeric keypad. }