crazy, it actually looks like the same steps are required whether you want an M1 or M2. Screw that, just tell her to apply for an M1. I wouldn't even bother with a limited license if the exact same steps are required unless it affects her insurance rates.
http://www.dmv.ca.gov/dl/dl_info.htm#2505
How to apply for a motorcycle or moped driver license if you are over 18
There are two classes of motorcycle licenses, Class M1 and Class M2.
With a Class M1, you can operate any 2-wheel motorcycle and any motorized vehicle in Class M2.
With a Class M2, you can only operate any motorized bicycle or moped or any bicycle with an attached motor.
Refer to the Motorcycle Driver Handbook for more information.
To apply for a motorcycle Class M1 or M2 permit, you will need to:
Visit a DMV office (make an appointment for faster service)
Complete application form DL 44 (An original DL 44 form must be submitted. Copies will not be accepted.)
Give a thumb print
Have your picture taken
Pay a $24 application fee
Pass a vision exam
Pass a traffic laws and signs test. You have three chances to pass the test.
Note: To allow you sufficient time for testing DMV will not be administering written or audio exams after 4:30 p.m.
After studying both the California Driver and the Motorcycle Handbooks, call your local DMV to schedule your appointment for the traffic laws and sign test.
After completing the requirements, you will be issued an instruction permit to allow you to practice driving a motorcycle. You may not drive at night, on the freeway, or have any passengers with you.
To apply for your motorcycle Class M1 or M2 license, you must do one of the following:
If you are under 21, you must complete a motorcycle rider training course given by the California Highway Patrol (CHP) and provide the completion certificate to DMV to be issued your license. You will not be required to take the motorcycle driving test at DMV.
If you are over 21, you may either choose to complete the course by CHP and provide the certificate OR schedule an appointment at DMV to take the driving test. You have three chances to pass the test.