Calendar synchronisation & ical Apple Calendar [Feature request]

I love BookingPress, but the current management of booking synchronization with the staff calendar should in my opinion be improved to fully exploit the plugin's potential. I'm really waiting for these features and improvements because as it stands, the use is not easy for everyone and does not suit some users who will prefer to do without BookinPress, even though the plugin is great.

1) It really lacks the management of ical calendars and automatic synchronization with Apple calendar, via an add-on, like Google Calendar. The lack of management of ical and Apple iCloud calendars is a big black mark of the plugin, especially for customers who only use an iPhone to manage their appointments.
2) Have a more complete synchronization, with the possibility of choosing sub-calendars in which to record appointments for the staff, regardless of the system (Google calendar, Apple ical, Outlook)
3) Have a perfect synchronization in both directions, that is to say, allow to search for appointments already existing in the staff calendars and only offer the slots actually available to customers. This works very well with Apple ical and iCloud.

In short, have the same quality of synchronization as what can be found with competitors like Calendly for example.