Update Calendar Event instantly from calendar addons cardservice

[Stefano]

By file manifest and "eventopenTrigger" I'm coding a calendar addon as a cardservice but I would like that when I select a dropdown list (loaded from DB), instantly change event detail (name,description,where....etc.etc.).

Do you think was possibile?

I have tried this:

var calendarEventActionResponse = CardService.newCalendarEventActionResponseBuilder()
    .addAttendees(["us...@example.com", "us...@example.com"])
    .build();

it's good, but this method update only attendees.....
something similar to instantly fill in the other fields?! Exists?