Where to store render variables. Tried all .ini

Hi,
I’m trying to store those settings:

r.TemporalAACurrentFrameWeight 0.25
r.TemporalAASamples 4
r.Tonemapper.Sharpen 1

I tried to store those settings in almost every .ini files (both in the project folder and engine folder) but none of those are working, I have to enter them manualy each time I open my project to make them effective. What am I doing wrong?

Nobody knows !?