Technically speaking, that's better controlled from the authorisation database rather than fooling with the pam.d configuration files. I leave that kind of thing to Centrify ;)

But yeah look for the security authorisationdb commands to do this, works a lot better. (I'm on phone so can't look at present)

This used to work up to 10.11.6.

"With OS X Lion v10.7.3 and later, an admin user can can unlock another user's screen saver.
Unlocking a non-admin user's screen saver
Press Option-Return, then enter an administrative user's name and password."

Now in 10.12.1, if you try to unlock another user's screen saver (eg: network user) with Option-Return, you can't type into the name/psw fields and apparently get stuck there.
Is this a security feature? Am I missing something obvious?
Many thanks for your help!

Experiencing the same. Any keystroke entered is immediately backspaced.

Cross-referencing stackexchange

I hoped this may be fixed / go away in 10.12.2 but still experiencing the issue. Real pain for doing support, would love to hear if anyone has a work around or fix.

No fix in 10.12.3 released today.

I can not say if this is addressed in the public beta of 10.12.4 b3. But you might try it there... ;-)

Very nice.

This appears to be working in 10.12.4

Confirmed, working once again in 10.12.4

I know Robby is happy!

j