Include (-
[ DetectKeys key;
	key = VM_KeyChar();
	return key;
];
-).

To decide what number is Key Pressed:
	(- DetectKeys() -).

To wait for the enter key:
	let key be Key Pressed;
	while key is not 13: [Or whichever number it was, if you make it "say key" you'll get it.]
		let key be key pressed;

[Optionally, depending on how your code is done you can also include a
	say "Press the Enter key to continue.";
 Right at the beginning of the "to wait for the enter key" section.]