How to set APN for MVNO carrier?

[rzlvmp]

Here is APN parameters for my provider:

https://mvno.dmm.com/apn/android.html

Sorry for Japanese but that is only page in the Internet

In short I have to set:
Name: DMM Mobile
APN: dmm.com
Auth type: PAP or CHAP

Available parameters for Ubuntu Touch:
Name, APN, Username, Password

Mostly different parameters

Also I can't set carrier. DMM mobile is a MVNO using Docomo major carrier networks in Japan. In result I able to set only "Automatically" and None carrier is displayed in this mode.

Should I use vim, couple shell scripts and a C++ custom headers to be able set a basic feature like APN?

[lduboeuf]

@rzlvmp have you tried to remove the pre-filled APN ( swipe right ) and create a new one ?
A reboot is needed too iirc