Duplicate calendar events from shared calendars

Hi,

I’m using nextcloud on a managed hosting plattform at wolkesicher. I switched from google and I work a lot with shared calendars I integrated as read only via URL. I don’t want to create a copy, as they are very dynamic and constantly changing.

I do however like to duplicate relevant events in my own personal or shared calendar. With google, and even with third party clients like thunderbrid I can duplicate events from URL-subscripted calendars in my own calendar. But I’m looking for a duplicate feature for nextcloud web.
It should preferrably work like the already existing duplicate feature for own calendars, so the goal is a expansion which covers URS-subscripted calendars.

Who’s willing to provide it? Or is there a hack I don’t know about?

Thanks in advance!
Stephanie