count relation

Hello
I create some relation fields to link my models to shooting for instance. Is there a way to show the number of items showed in this relation:

in the below example:


I would like to have the result 4 - having this in a specific field could be wonderful


not sure this is possible but this could help me a lot

no without coding not possible you can only display a list of item

OK - thanks

oh - just thinking about as I need to put in place something manual

do you know the table showing the relation?

to touch it because you will broke update system

I don't want to modify them - I want to extract them to check what has change through excel