Fleet account: linked account have access to all vehicles?

Hi, thank you for the excellent service!

Question: I have two vehicles. One car is for my private use, and the other is shared. I have two TeslaFi accounts, and they are linked as Fleet.

Now I can see both cars from either TeslaFi account. Is it possible to set it up so I can see both cars with my TeslaFi account and the other TeslaFi account can only see the shared vehicle?