Evil Clerics: Rebuke Undead

I saw that the Aenea website states:

Evil Clerics: Evil
clerics in Aenea cannot turn or destroy undead. They instead have the power to rebuke or command them. They still use the "Turn Undead" power in-game to do this.

I don't believe that NWN originally implemented Command/Rebuke Undead, and that Turn Undead functioned the same for good and evil Clerics alike.

How does Command/Rebuke Undead work in Aenea? I've noticed A friend that plays says that he does not observe any effect when using the Turn Undead option vs. Undead other than a red lights sfx.

For, uhm, my friend's clarification, is there any details regarding the mechanics for this? Is it functional? My, uh, friend would like to know what to expect when Command/Rebuke Undead successfully works. Yeah, that's the ticket.

I've used this only occasionally, but you your friend need only turn undead as normal, and it should instead dominate the undead (command) or paralyze them (rebuke).