Combine multiple selection node

I want to select all windows in a specified level in dynamo.
I can select all windows using “all elements of category” node
I can select all elements at a level using “all elements at level” node
How to combine these two nodes to filter elements.
I tried to use the “&&” node but it is not working
Any help?

Hi @joeiskandar1995
Try Filter by bool mask for all elements of a category


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