Execute component workflow for multiple component in a repeated group

Hey,

I’d like to execute from a parent section / from the page a component workflow.
It’s working perfectly when it is a single component but I’d like to execute this action in a component on a repeated group.
My idea was to store the instances of each of these components then from the page to loop on an instance array but I can’t find a way to execute the workflow.

Does someone has an idea ?
Thanks