[Grid Addon] Show Ebon Gargoyle as pet frame (and how to power infusion it?)

Hello, I'm struggling with Ebon Gargoyle since in the default UI it doesn't appear, and not even while using Grid. I remember it was showing as an additional dk pet under the ghoul but now it doesn't work anymore (or maybe I have a fauly memory).
The fact is I play without friendly nameplates so It's really hard to check Gargoyle health without targeting it, and I play Healer so I need to heal it if needed (I have keybinds to target party1 and party2 pets but they don't work with Gargoyle, maybe I have to press the bind two times to rotate the pets I don't know I actually have no time to do these tests at the moment, or anyway an additional keybind to target it would be hard since I used almost every key, with modifier, don't even know if i have a free keybind available)
How can I resolve this?
Also: why can't I Power Infusion it? On icecrown it's like 1 year or more it's bugged and it won't let me cast PI on it, meanwhile on blackrock and other servers where I play I can do it with no problem, and it's working as intended, so the bug is only on Icecrown.
Thanks any help is appreciated.

Anyone with some advices? It's really important to me. Thanks