Dahua ITC231-RF1A-IR User Manual page 103

Add group: Add user within group and set group right.
Note:

You cannot delete admin and user groups.

You cannot delete group which contains currently logged in user.
6.5.6.2.4 ONVIF User
ONVIF user is separated from device user, so could be managed alone, see
Username
Rule same as in
Figure 6-95 Group
.
Figure 6-96
Figure 6-96
.