We are excited to announce that we have launched our new Hive Community! HiveNation will remain as an archive, but all new posts, discussions, and articles will be created on Hive Community. You can visit our new community at thehivecommunity.aerohive.com
Normally you would just get an additional entitlement key for the single new access point, which would allow four access points to be managed - three on the original entitlement key and one on the new one. However, I suspect you may want your entitlement keys to all expire at the same time for ease of license management. If this is the case you need to discuss this with your Aerohive reseller.