"Separate" line zone for different objects

[StefanoGarzoni]

Hi everyone, while using the line zone object for a project a question came to mind. Is it possible to have the separate count based on the object that passes?
For example, if 2 balls and 3 rackets pass I would like to see a counter with the number 2 and one with the number 3 and not just a single counter with the number 5
As always, I await your help.
Thanks so much in advance to anyone who will help me!