Michael English's dashboard

The Demo version of Concordance 2007 has a feature referred to in the manual- the field limiter. In it, you enter a word to search for, followed by a period and the name of the field, like so: [word].[field] . And that is supposed to search for all documents with that word in that field.

It does not work. At all. I keep getting an error message saying "no field", or something like that.