There is a lot to unpack here and quite a few if/then questions to follow-up.
I may suggest reaching out to your HPE Aruba Partner to help with some of the consulting. That being said...
The current Aruba Central Configuration hierarchy is much different, and this is a common design question.
You may try to simplify your Group Design - as few of Groups as possible to simply future configuration changes enterprise wide. In this case you could use Sites for more granular reporting, as well as Tags for other configurations.
It's also worth noting their are some upcoming changes to Aruba Central, both to the GUI and Configuration structure, that will help solve for scenarios like this. With the development of profiles and other named objects. Your HPE Account Team would be the best resource there.
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Zak Chalupka
Principal Engineer - HPE Aruba
ACDX | ACMP | ACSP | ACCP
wifizak@hpe.com------------------------------
Ideas expressed here are solely my own and not necessarily that of HPE Aruba.
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