Click on viewport/player screen to continue sequence

Hi! I don’t even know where to begin, so I have nothing to contribute unfortunately, but I’m looking to create a level up sequence in my Top down game that creates a widget saying “Level Up! Click anywhere on screen to continue” as so that I can take the players time to show what stats and upgrades the player got for levelling. However, when trying, I could not cast to viewport to set an “on clicked” event. Any other possibilities? The game behind is paused, so it cannot be on a key press as far as i am aware. Message me for any further details. Thanks in advance