How do you map controls in Mednafen?

3:204:48Mednafen Emulaor Complete Setup (Installation/Controller/Config) Multi …YouTubeStart of suggested clipEnd of suggested clipAnd we do that by holding alt shift. And one once again that’s alt shift in one and I’ll bring up aMoreAnd we do that by holding alt shift. And one once again that’s alt shift in one and I’ll bring up a prompt on the bottom of our screen. So we can assign our keyboard or our controller.