How to pair Assioma with Garmin edge 530 by BLE mode?

I paired a new Stages recently and it found Bluetooth first, can’t exactly remember what I did but it was possible to override BT in the pairing menu and then the 530 found the ANT+ radio. Maybe I selected the BT power meter and changed from BT to ANT+ under device features? Sorry I can’t recall and be of more help.