Number of digits for the Text draw option

Is it possible to set the number of digits for the Text draw option?

see documentation of THistPainter::Paint, option “TEXT” at
root.cern.ch/root/htmldoc//THist … nter:Paint
root.cern.ch/root/htmldoc//THist … :PaintText

thanks for the trick. It would be nice to add it in the user guide.