Since the script is not in persistance storage, you don’t need to modify directly to the script.
So, I just store the patch in persistance storage /DB and copy the patch from
preboot script in startup/cron menu.
# patch 3Gconnect script for ppp connection with username and password
cp /DB/3Gconnect_patch_user_paswd /root/kerbynet.cgi/scripts/3Gconnect
The 3Gconnect_patch_user_paswd file like in the modified 3Gconnect previous post by kasus.
I think zeroshell want to keep username and password secret, so this information is not in web UI.
I also add directly the register variable USERNAME and PASSWORD.
Hopefully this sharing, can help you.