I'm currently doing a POC on ZeroTier for my company to replace an aging Fortinet solution. I have ZeroTier setup on a couple servers and a couple test machines. So far everything is great and working well - at least until I started looking at flow rules. Here is the problem I'm looking to solve with a flow rule...

I have 50 Employees, 15 servers (server1 thru server15) and 10 Freelancers. The employees should be able to access all 15 servers. The freelancers should only be able to access servers 2-7. Can someone give me an idea of what the ruleset would look like? Thank you in adavance.