Multiple one year visa

Hi!
I'm an EU citizen and a permanent resident in Japan.
I have several trips to China scheduled in the upcoming months.
It makes sense for me to apply for a multiple entry permit valid for 1 year.
I am planning to go to the CVASC in Tokyo next week to submit my application.
Question:
1. what form should I use?
2. Is it really impossible to get a multiple entry permit if I am a foreigner permanently residing in Japan?
3. What other supporting documentation should I have with me?

I can only make one trip to Tokyo to apply, so I want to be overprepared.
Thank you!