There is no “And” function for multiple option filtering unfortunately but has been requested for a while now but what you have is fine!
The reason why it is blank it does not know what to sort by so you usually include Family and Type parameter (both not the combined one) something which has a parameter shared between the families and set some sort options
Jay Colcombe
Autodesk Certified Instructor
Revit Architecture & Structure Certified Professional
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B.Sc. Hons Civil & Structural Engineering
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