Hotkey for ejecting single units

Hello, I’d like to know if there’s a hotkey you can alter to eject individual units from a building, I already know there’s one to eject all, but the only way I know to eject single units is by clicking their icons in the building. This is useful when you are capped on TC fire and want to micro with the extra vils, but it’s annoying to have to click on them repeatedly instead of having a key to hold down.