The Console Variable Editor while handy for batching console commands quickly, it doesn’t run at project start, so it’s not the solution.
Most console variables can be added to the DefaultEngine.ini file located in your Project’s Config folder. The difference in the ini file is you have to use an = operator to set the startup value which is slightly different than the console command.
For Example: If you want to disable ray traced shadows on double sided geometry (which can often cause weird shadow blobs in your scene), the console command is : r.RayTracing.Shadows.EnableTwoSidedGeometry 0, but in the ini file you need to write
r.RayTracing.Shadows.EnableTwoSidedGeometry=0
The = symbol is how you set any console variable in an ini.