[O] sent (calendar,ics) invitation

[Uwe Brauer]

Hello

Maybe I  am missing something elementary, but I would like to send 
an event (from the org-agenda (or the calendar)) as an invitation in ics
format to another user, so that he/she can import it, say using
thunderbird and lighting or gmail etc.

I can't find anything in the documentation about it. I know there is an
icalendar export function but I can not see how I could send an event as
an invitation.

thanks

Uwe Brauer