Mango red how to change APN name

HI!
i working on mango red and i need to set up APN of my cellular provider.
by default i see internet.sierrawireless.com is configurated .
How to change it please explain?!?
root@swi-mdm9x28-wp:/# cm data
Index: 1
APN: internet.sierrawireless.com
PDP Type: IPV4V6
Connected: yes
Interface: rmnet_data0
Family: inet
IP: 10.109.235.221
Gateway: 10.109.235.222
Dns1: 91.135.104.8
Dns2: 91.135.102.8
root@swi-mdm9x28-wp:/#

please see here:
https://docs.legato.io/latest/toolsTarget_cm.html#toolsTarget_cm_data