As you will have seen from other posts in the Milesight section at the time of starting this thread Milesight do NOT offer Mac-friendly utility (like Smart Tools) to set up and manage their cameras. But this does not mean that you can't access, view, and change the settings of a Milesight camera/NVR with a Mac, because as you will see from the screenshot once you have set the device up with a PC you can open Safari browser on a Mac, search the IP address and log in to the camera....
Accessing a Milesight Camera/NVR from a Mac
Accessing a Milesight Camera/NVR from a Mac