>

cCode+dtos(dDate) tag test

>and it didn't show up in the tag list for the find. Then did it with 2 character fields, and it worked. But got only one field to enter the value, don't think it would find anything.

You need to go in the cmLookUpManager class on the form, go to the GenTagList method and put something like :-

if alias() == 'MyTable'
   This.DefineTag('Test', "DisplayExpression", , , 'LookupName')
endif

The default code can't figure out complex index expressions. Look up GenTagList/DefineTag in the guide. This is where you need to be.

HTH