[O] Agenda display count of monthly anniversary

[Matthias Hetzenberger]

Hi all,

I know I can display the number of years since an anniversary using 
diary-anniversary. However, I would like to also achieve this with 
monthly anniversaries.
For example the count of occurences of the event <2019-05-25 So. +1m> 
should be displayed in the agenda view. Is there any easy possibility to 
achieve this?

Regards,
Matthias