I’ve been working with the Keys of Ocat and the related materials for a while now, even though I’ve not updated my journal in a while. I still work with this at least once a week.
Some of the keys are for opening specific gates, some are for opening gates related to adding elemental energy, planet energy etc-to your work and so on and so forth.
To work this grimoire, you need not only the keys of Ocat, but the Keys of Death, Necramantic Sacrements, and the infernal Colopatiron as well as Honoring death, all by Connolly to build your workings from.
She only gives partial information, even if you have all of the books, as it’s geared to be worked by individuals who can build the ceremonial type ritual with only a few guidelines and pointers from her personal experience.
There are also keys missing from the Keys of Death book, that can only be obtained from our chi asking a physical copy and then even more than used to be available on her website but no longer are- I revived these via email after requesting them from her directly due to they are not out there publicly.
If she said this in any book, I managed to read over it. She doesn’t give you instructions for how to use each, a few suggestions on how to use them to open the gates, but nothing like what you u describe.
The entire point of her work is not banegul magic, but rather learning to work with dead spirits and entities related to that type of work.
You can use these methods to do baneful magic, but Connolly doesn’t even touch that topic with her works and I wouldn’t use them in this application at all personally as it wouldn’t even begin to tap into the potential of the current by using it for this application-Imop.