Populate groups based on query

I have a nice database for our setup with things like location, beam type, tone, etc, and now I'd like to create groups based on these for busking and other applications.  How can I populate the channels for this group using query?  For example, if I want a group of all 3rd electric washes, I have a query that can do this, but I don't see query anywhere.  I am on a ION classic running 2.9 (the max i can go).

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