For want of a better name (suggestions are welcome) we call this function 'AskRepeat'.

   At or near the top of the document, you can insert a group name 'ask' in this style.  

  <<*AskRepeat*!groupname!*>>. It is simply the 'repeat' keyword and the !groupname!. Nothing else. The entire prompt is 'administrative' which is why it closes with a '*'. Its sole purpose is to ask how many repeats of each !groupname! there are to be. The value is recorded, but nothing is returned to the screen.

   See also AskRepeat with Options