How to Button Pressed event as inputaxis mapping?

Hi,
I have a HUD and there is a button. I’m using vehicle movement component (wheeled vehicle component 4W). I want to gas vehicle when I press button from HUD. I tried this but its not working.
Screenshoots:
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it’s hard to understand here) but if you are sure that the blueprint should work, then check the settings on all HUD buttons
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