I understand you think it's technical, but the only technical part is when you link the Dashboard to the EA and then you link your smart account(s) to the EA and then your individual products to your smart account.
The licenses within the agreement have to be structured correctly for it to work the way you want. My understanding based on all the partner training I've been at and read, is that's possible.
It's hard for anyone here to answer your questions specifically because we have no visibility into your specific agreement and EAs have MANY MANY options for structuring/skus/etc.
This is why I suggest getting with your Cisco account team.
If you found this post helpful, please give it Kudos. If my answer solves your problem please click Accept as Solution so others can benefit from it.