Congratulations being ACE certified.
Joanne Duncan-Carnesciali explains things well. If you have more questions, ACE is very friendly and helpful.
Take care.
Within ACE certifications, level two does not exist. You can study and sit for the Personal Trainer exam though and eventually qualify to take the other advanced certification exams offered by the American Council on Exercise.
The best way to find out is to contact the organization which you are seeking to get certified on level 2 directly, because they would be your best source of information regarding the requirements needed.