Disable Menu Access at Game start with Eventcommmand.
Than use a Parallel Common Event:
If Escape Button Pressed - Do stuff than Open Menu.
Loop
If Escape Button Pressed - Wait 1 Frame
else break Loop (The temporary extra Loop is to prevent Menu from opening again when you hit escape in menu to close it)
It's called Cancel. Right? The button you press to cancel screens and such is Escape?there is no escape button in my conditional branch