Add messages to persistent notifications

Sometimes I want to add newer information to an existing persistent notification.
But I’m not able to read the existing message from the notification.

Maybe I am using this in the wrong way - all I really want is to inform about situations but over some time period, as I’m not able to tend to all of the situations directly.

Maybe a log would be better?`

Thanks für your advice
Halawachl

Best way would be to add a notification ID, then use that kill it and replace it with a new notification to ‘update’ it.