How to change the emissive tonemapper curve?

Hi!

As you may know, since 4.15 UE has adopted a filmic emissive tonemapper. For this specific topic, it means bright emissives get progressively shifted to white.

What I am trying to do is alter the value required to reach a fully white emissive, as for my current project and bloom settings, colors get too white too quickly.

Do you have any suggestions as to where such a setting would be? I have looked at the post process settings, and console commands, but couldn’t find anything.