I'm writing a Zope Quick Reference covering DTML and ZPT, and I am stuck trying to figure out the meaning and use of this variable, one of the many available inside a dtml-in loop. All editions of the Zope Book (and every other Zope book I know about) pretty much say the same thing: sequence-index-{variable}: The index of a variable of the current item. You are supposed to replace {variable} with some attribute of your current item. I've tried that with no success (although I've managed to test every other documented sequence-* variable). You can check the official docs here (but they haven't helped me): http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/ AppendixA.stx Reading the source seemed non-trivial in this case, so I decided to ask after a while (the only relevant module in Zope 2.6.1 seems to be DocumentTemplate/DT_InSV.py). TIA for any help! -- Luciano PS. I've posted this in zope@zope.org a few days ago with no reply so far