Show changelog of event in detail view

Hi,

we're migrating a calendar from an old groupware to Nextcloud and are missing a function: in Nextcloud Calendar it seems that it isn't possible to view a changelog of a single event.
Our old groupware did show the name of the person that created or changed the event with some additional info (date, time of the action and also what has been changed) in a list.
We found out that in the Activity view it is possible to see the last changes, but this isn't a solution when you need to check the modifications made on an event created a year ago for a future event (example: we sometimes have to create calendar entries for events that take place in two years from now).

As the information itself seems to exist in the activity stream is there maybe a simple solution to show the changes also in the single event (some sort of filter that shows all entries of the activity stream for one event)?

Start with the calendar event detail view and the existing Activity view to determine how event changes are represented and whether they can be filtered to one event. Define the event-level changelog's displayed author, timestamp, and change information, then verify it against an event with older modifications.