Center Click Trigger

For posterity's sake, that script didn't fully work, but this one did with a newly created variable called CenterClick:

// Get the player object
var player = GetPlayer();

function incrementCenterClick() {
    // Get the Articulate Storyline player
    var player = GetPlayer();

    // Get the current value of the CenterClick variable from Storyline
    var centerClickValue = player.GetVar("CenterClick");

    // Increment the value by 1
    centerClickValue += 1;

    // Set the new value back to the CenterClick variable in Storyline
    player.SetVar("CenterClick", centerClickValue);

    // Optional: Log the new value to the console
    console.log("CenterClick count is now:", centerClickValue);
}

// Add event listener for middle mouse button click
document.addEventListener('mousedown', function(event) {
    // Check if the middle mouse button (button code 1) was clicked
    if (event.button === 1) {
        incrementCenterClick();
        // Optional: Prevent the default action of the middle mouse button click
        event.preventDefault();
    }
});