Maybe it's there but I don't know, but I would love the ability to create a custom touchbar for any application that doesn't have one. Maybe just something that assigns a keyboard shortcut to an icon in the touch bar. I would also love the ability to overwrite some apps' touchbar settings with my own custom ones.
@andreypatseev That's not really what I meant. Let's say for example I am playing a video game, it doesn't have a touchbar interface. I want to be able to have a customized touchbar for this application made of shortcuts I created (like cmd+s to save etc.)