Is there a node to modify input.ini?

You have other options too. You can use Rama’s “Victory Plugin UMG” and “Victory Plugin” which will allow you to add keybindings to your menus and allow changes. His current versions have a few oversights and flaws, but works well! I actually am making a complete menuing system which encompasses all of this… It’s almost done, if you wanna see it! and it’s all in Blueprint and can easily be changed to your liking for background images, etc…

Here are a two infancy screenshots…