Sorry you did not get a response sooner. Hope your egg was okay.
In future, if you look in the Articles section, there's a great Article on Assisted Hatching. it is for all poultry, and gives great step by step instructions for what to do next time you encounter a similar situation.
If your egg did not make it, I'm terribly sorry about that. I assist most of my chicken eggs, if I'm uncertain how they're doing. Making an air hole and moisturizing the membrane is IMO not that invasive, and allows me to help if needed, and know when the egg has quit if that has happened, so I don't have to sit and wonder.