Using variables in Index entries

FrameMaker by itself does not support the use of variables in Index markers, except for a few special system ones ($startrange, $endrange, $nopage, $singlepage).

In order to reference user-defined variables in an index marker, there are a couple of third-party tools available to get around this limitation.

See:

IndexTools Professional from Silicon Prairie Software at
http://www.siliconprairiesoftware.com/

MarkerTools from Leximation at
http://www.leximation.com/tools/info/markertools.php