[RMXP] CAN I TERMINATE MESSAGE WINDOWS VIA AN EVENT COMMAND?

Looks like I have yet another oddly specific problem! I think I'm on a roll!!

My game features a unique menu that shows a summary of your character's name and stats upon pressing a button. The current button I have set to open the menu is Shift. However, because the event that opens the menu also displays a message window, I have to press a different button to close the menu than I used to open it. This feels very clunky and unintuitive.

Is there a way to set a conditional branch to check for when Shift is being pressed and, when it is, terminate the message window? I'm using Ccoa's UMS 1.8, if that helps!

Thanks!!

EDIT: Oh, wait! I may have just thought of a solution! Is there an event command that "pushes a button"? Because, if so, I could just make it so that whenever Shift is pressed, it also presses the button that closes message windows!