Is there a way to filter and pick up elements inside model groups?

Dear fellows,
I am working on a row of townhouses, with 20 buildings. They have the same style but different dimensions. I made each building a model group. Now I’m trying to filter and pick up all the exterior walls on L2. Is there a way to do it without ungrouping them? Thanks!

Hi Liu,

Query Elements does not require ungrouping, just filter for your wall type and by Level (or other variable)

Hi, Japhy is there a way I can select everything within the group without ungroup or tab selection in Revit? Thank you.

Try the Group Members component.