Side button behavior

To show a button from a specific location you can use Corvid api - onViewportEnter / Leave .
Select the element or section from which you want to show the button> Copy its ID to the function.
Select the button you want to show and copy its ID.

// >> Something like this:

// To show button
$w("#trigger_element_id").onViewportEnter( (event) => {
    $w("#button_id").show();
});

// To hide button
$w("#trigger_element_id").onViewportLeave( (event) => {
    $w("#button_id").hide();
});

Don’t forget to set the button as hide on load