Can I replace my F-visa with a Z-visa as I will have to reside and work out of the Shenzhen office?

Dear Sirs, I am a Greek citizen (Greek passport) living and working in Japan/HK for a Greek multinational company. I already have an F-visa for China (1 year, multiple entries) as my duties bring me frequently to our offices in Shenzhen. My duties will soon change and I will need to reside in Shenzhen in order to best help my company. Therefore, I would like to find out whether I can replace my F-visa with a Z-visa as I will have to reside and work out of the Shenzhen office. Kindly advise me about what !