How to restrict access to NFS share in FreeNAS?

Question

FreeNAS

I'm trying to figure out how to correctly distribute access on an NFS share in principle and on FreeNAS in particular.
Through the GUI, you can distribute the rights to the dataset, and then map it in the ball itself to a specific user (who has the rights to the dataset), you can also restrict by host and network.
And how to give rights with different access to several users at once on one ball? For example, in SMB (on Windows), you can give local users rights to NTFS and SMB shares, and when connecting, you need a user with the same name and password to be in the local users of the client or when connecting, the credentials of the remote user were specified.
1. Is it possible in the same way (by analogy with SMB on Windows) to connect to an NSF share (on FreeNAS) under a local FreeNAS user and how to do it, for example, from an Ubuntu client?
2. Does NFS support Windows AD users, ie. Can I drive FreeNAS into a Windows domain and give access to the dataset to Windows accounts, and then connect the share from various clients (Windows and Linux) under domain accounts?