Just 1 Notification for new files possible?

Hello,
I've set up a rule to let me know if there are new files added to my photo inbox. If files are added hazel let's me know that by giving me a notification and also sending me an email via mail.
This works pretty good so far but hazel does that for each and every newly added file. So when I add a whole bunch of photos to that inbox I get accordingly that many notifications.
Is there a way to tell hazel that I only want a single notification for a whole stack of new files?
I've set up a rule to let me know if there are new files added to my photo inbox. If files are added hazel let's me know that by giving me a notification and also sending me an email via mail.
This works pretty good so far but hazel does that for each and every newly added file. So when I add a whole bunch of photos to that inbox I get accordingly that many notifications.
Is there a way to tell hazel that I only want a single notification for a whole stack of new files?