Vsphere 6.5 how to use active directory to manage users and groups

I'm running a free version of Vsphere 6.5 so there's no vcenter.

I've joined the Vsphere to AD however, I'm not able to add any AD users or groups.

When I go to Security &  users > users > add user, it does not give me an option to select a domain user.

It only gives me an option to add a local user.

In Vsphere 5.x, using AD users and groups was possible but can't seem to find the settings for it in Vsphere 6.x.

Is there a way in Vsphere 6.5 to add AD users and groups to manage the hypervisor?