Set DNS permantly for NetworkManager

My ISP has set my DNS servers as follows:-

$ nmcli device show eth0 | grep IP4
IP4.ADDRESS[1]:                        192.168.0.14/24
IP4.GATEWAY:                            192.168.0.1
IP4.ROUTE[1]:                           dst = 0.0.0.0/0, nh = 192.168.0.1, mt = 100
IP4.ROUTE[2]:                           dst = 192.168.0.0/24, nh = 0.0.0.0, mt = 100
IP4.DNS[1]:                             189.198.222.137
IP4.DNS[2]:                             189.194.232.137
IP4.DNS[3]:                             200.77.146.137

How do I change the servers permanently? Thanks in advance.

Open connection settings, set DNS to fixed values instead of automatic. If you need click-by-click guide you need to at least tell what desktop environment and NetworkManager frontend you are using.

Thank you. That speeded things up under XFCE. Now can the same be done with nmcli?