Best answer by s.heise
Probably our support got a feedback from Aerohive with the commands that where already mentioned in this feed.
I got the information that you will be unable to enter a password for the supplicant, but with the right firmware it is possible.
For AP141 it doesn't work as the commands doesn't exist there and also the configuration isn't supported as it is done by CLI only.
@Sam Pirok is it possible that you start a feature request for this, as it was already possible to configure it on the Hivemanager Classic Cloud GUI, so this configuration will be supported again?