Excellent, thanks ! This about covers it all, and I am totally fine with re-enabling the flashing on a per-session basis as I only need it occasionally (although I would probably use wireframe mode more often if the earlier mentionned highlight was possible, but that's besides the point of what is possible now). I also just put the button for .Ini editing directly in my tool shelf and this alone makes the process of tweaking the .ini just a little bit less tedious.

From there, a remark on settings : with the .ini having so many useful features, hasn't it reached a point where it deserve its own dedicated section in the Options, giving direct access to all (currently hidden) settings and switches ? I feel like it is now way past the point of hosting just a few settings only edited once in a while, and it is now really quite central to the fine tuning of the MOI experience. Being able to edit all these things during the current session and without any need to restart would be quite an improvement for the user imho ... and would perhaps reduce the amount of support questions too (this thread being an example of that).