GameMaker:Card Buttons

From GMG Manual

Three of the card layout options provide six customizable buttons. Commands and instructions executed by the buttons can be as simple or complex as you like. In a typical basic adventure game, each button typically represents actions the player can take to choose their path through the game, such as "Go North", "Enter House", or "Press Top Switch". A simple RPG-style game would have menulike options for attacks, magic, and use of items with scripting attached to perform various calculations, and directional commands for exploring. Each of the six blank buttons available along the bottom of each card has the following abilities, executing in the following order:

• scripting commands
• Simplified USERASK; the user is asked a question, and the button stops performing actions afterward unless the player supplies the exact answer.
• SOUND playing with the option to wait for a sound to finish before continuing
• changing the STATUSBAR
• options for leaving the card or performing actions:
  • go to another card
  • end the game
  • return to a previous card
  • MENU action.