Maybe I can starting directly to add the 4th tabulation no ?
If you want.
the idea is to add a tabulation to manage the importer ?
Yes and no. We need another tab, so the user can import a new ini file any time he wants.
But we also need to run the importer at least once on a new installation of OpenMW, because once the fallback system is actually in use, OpenMW won't work properly anymore without imported ini settings.
About the importer I don't understand something,
when I launch it : "./mwiniimport ../Morrowind.ini ./openmw.cfg"
that add only in openmw.cfg this :
fallback=Weather_Sunrise_Time,6
fallback=Weather_Sunset_Time,18
fps=0
nosound=0
why ?
The importer only imports those settings that are in use at this time (nosound) plus some for testing the fallback feature (that are not in use yet).
Actually making use of the ini settings (and change the importer so that it imports them), is a separate
issue.
btw. If you are sure that you want to take this task, you should create a new thread in the development forum for it.