@fossMan The standard way of doing things in Ubuntu translations is that translations are for the generic version (nb in this case), unless there is a specific need for regional translations to exist (such as for pt_PT and pt_BR). So you should do everything for the nb locale in this case, I think.
Uh thanks for the reminder. Sorry to say, was still not able to activate / create the projects in Weblate. And also did not merge anything. Let me check it this week, we got a public holiday and on Fri I am off work, so 4 days for Ubuntu Touch xD