SUM & COUNT - multiple (but not all) maps

I’m trying to use SUM & COUNT to scan several maps in the module (but not all maps), specifically:
Main Map, GROUP A, GROUP B, GROUP C, GROUP D, GROUP E, GROUP F, GROUP G, GROUP H

I’ve tried several variations of syntax to get the SUM/COUNT commands to look at multiple maps, to no avail…
Starting to wonder if it’s even possible or if the code base will only handle resolving a single map…?

Some things I’ve tried:
Count("{Class==“Infantry” }",“GROUP A” && “GROUP B” )
Sum(“Strength”,"{Class==“Infantry” }",“GROUP.*”)

If there is a syntax that will work, would appreciate any ideas…
If the code doesn’t support multiple maps for these commands, that would be good to know also (and should probably note in the documentation).

Also, I did a search on wildcards in the designers guide and didn’t see anything… Was trying to understand how wildcards work, both inside and outside quotes… Would probably be good to add…

Thanks for any help!!!