Allow corporate users access to only certain computers?

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Hi,

I have about 4 users that will need to access a computer on my corporate account. The thing is, they'll all need access to different computers - with only 2 computers that overlap. How can I give access like this:

UserA Access to ComputerA and ComputerD

UserB access to ComputerB and ComputerD

UserC access to ComputerC and ComputerD

I would prefer to do these configs from an admin center without logging into each of the computers and i'm currently managing those computers.