Hi Denis, 

Thank you for your purchase.

There isn't such possibility with Amelia's current built-in features, unfortunately. You can  suggest that as a feature request here, if you wish. 

If you have any other questions or concerns feel free to open a new ticket and we will gladly help out.

You are welcome, Denis.

Yes, JS files are modified (minimized) in the public version of plugin, but unfortunately we can not send you our source code because that is the policy of our company.

There are a few JS hooks which are triggered depending on the view:

window.beforeAddToCalendarLoaded()
window.beforeBookingLoaded()
window.beforeSearchLoaded()
window.beforeSearchFiltered()
window.afterSearchFiltered()
window.beforeConfirmedBooking()
window.beforeCatalogLoaded()
window.afterSelectCatalogCategory(object_category)
window.beforeCatalogCategoryLoaded(object_category)
window.beforeCatalogServiceLoaded(object_category, object_service)
window.afterSearchActivateService(object_appointment, object_serviceActive)
window.afterSearchGoToSecondStep(object_appointment, object_serviceActive)
window.afterBookingSelectDateAndTime(object_appointment, object_serviceId, object_providerId, object_locationId)
window.afterBookingSelectService(object_appointment, object_serviceId, object_providerId, object_locationId)
window.beforeConfirmBookingLoaded(object_appointment, object_service, object_provider, object_location)
window.afterConfirmBooking(object_appointment, object_service, object_provider, object_location)

And there are these WP hooks in Amelia, , if those could help you out somehow.

This should be added to  "wp-content/mu-plugins/functions.php"

<?php
function amelia_booking_added_hook($reservation, $bookings, $container) {
}
add_action('AmeliaBookingAdded', 'amelia_booking_added_hook', 10, 3);
function amelia_booking_time_updated_hook($reservation, $bookings, $container) {
}
add_action('AmeliaBookingTimeUpdated', 'amelia_booking_time_updated_hook', 10, 3);
function amelia_booking_status_updated_hook($reservation, $bookings, $container) {
}
add_action('AmeliaBookingStatusUpdated', 'amelia_booking_status_updated_hook', 10, 3);
function amelia_booking_canceled_hook($reservation, $bookings, $container) {
}
add_action('AmeliaBookingCanceled', 'amelia_booking_canceled_hook', 10, 3);
?>

So, these functions will be triggered after these actions: booking, cancelling, time update, status update

$reservation has data about the appointment (startTime, endTime...)

$bookings contains data about the bookings that started the action (from the front-end there will be one booking, and in the back-end there can be more, if a group appointment is created)