I downloaded the Dam_Standard brush. When I was going to put the .ZBP brush and associated other file (Falloff_Sharp-Alp.psd) into the ZDrushes and the ZAlpha folders I realised they were already there. I have no recollection of ever placing them there.
Anyway, within Zbrush the Dem-Standard brush does not show up as one of the many brushes.
Without loading it within ZBrush every time , how can I make it show up under the brushes every time I start the program?