I'm so sorry this is such a stressful hatch for you. Are they still just 'vibrating'? I really wouldn't recommend creating any pips- when chicks don't hatch, it's generally for a reason, and the risk of creating a pip incorrectly is high enough that I, at least, wouldn't risk it. Also, opening the incubator at all will lose vital humidity- crucial in all hatches, and it seems like you should try to provide as stable as a climate as you can to eliminate any outside problems for the chicks.
If you really want to help with pipping, and are pretty sure they won't make it if you don't help, I'd do as much research as you can about the process and not attempt it until at least tomorrow morning- give them as much time as you can to let them pip by themselves. At some point tomorrow, if you decide to risk opening the bator, you could check for internal pips, which would give you a better idea of if they'll make it.
I really hope it works out for you. Sorry I can't be more helpful.