Good news, this is possible. In the customer defaults, use the option: Gateway -> general -> miscellaneous -> text filter -> regular expressions. Ok the dialog and restart NX for the change to take effect.
Now in the "filter by name" entry, you can enter .*DIA.*|.*LENGTH.* to find all the expressions that contain "DIA" or "LENGTH" in the name.
Neither have I and I've been using UG/NX for a lot long than Taylor has (38 years this coming August). Of course, we've only had expressions since UG V8.0, but that's still 24 years this month.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA Siemens PLM: UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.