The cursor cross hair and x-y labels can be turned off in View -> x-y labels -> off. There is no adjustment to decimal places for the cursor/crosshair feature. To get the volume amount in easier to see format then as Rowan posted, code it onto the volume chart like so ...
Originally Posted by lockscombi
Title = EncodeColor(colorYellow)+ " Volume : "+ WriteVal(V, 1);
Plot(V, "", colorWhite, styleHistogram | styleOwnScale | styleThick);
AFL is very flexible. Good for imaginative types that like colourful displays of price or volume.