What you can do is make an event on the map that is a parallel process. Make it a conditional branch When Button (Choose Button) is being pressed and under that change the graphic to none, disable menu access, record the player's position with variables, and turn a switch on. Then, create a second event page for the event that switches everything back and transfers the player to their original position. I'll show the event pages below. Things can be changed to suit your needs. A pointer or other graphic would be better since you can't really see the character with the one I created, but it gets the point across.


Then, make another event page on the tiles that activates when the switch is on so they can display text. I'd recommend making it an action button command so the player can travel through without having to stop at every tile. Finally, keep in mind that the Button X is pressed refers to the game controls and it actually activates when you press the A button. If you go into Help>Game Controls it gives you the breakdown of the controls.