If you still have access to the HiveManager Select account, you'll want to go to Monitor> Check the boxes next to the devices> Click the trash can icon near ADD at the top to remove the devices from their current inventory. You should then be able to add the devices to your HiveManager Connect inventory. This guide reviews how to remove and add devices to the HiveManager, for reference: https://thehivecommunity.aerohive.com/s/article/Adding-and-Removing-Devices-in-HiveManager
If you do not have access to HiveManager Select any longer, please email the serial numbers of the APs to me at communityhelp@aerohive.com and I will free them up for you from my side of things.
