Oh it's not an "issue". That is why I never said anything about it earlier
Just a preference thing: One tab for the gamer to set things up, and another for creating/modifying game mods.
Unlike you, I found it "off" (not a problem, difficulty or hassle, just odd) that when adding a mod I would use OBMM, Wrye Bash and BOSS on one tab, but had to change to a different tab (otherwise for mod creation) to complete the process. No biggie, just my two cents worth, happy either way.