Defining text fields to identify contents of a container
The FileMaker Pro 10 User's Guide says "Although you can’t find or sort records based on a container field, you can define a text field to describe or identify the contents of the container. Then, you can find or sort records based on the data in that text field." (page 83).
I'd like to set this up in my database. But if a container field cannot be a match field, then how is this possible?