Apply filter on the lookup field

Hi Community,

I'm working in Creatio Freedom UI and I need to apply a filter to a lookup field in one of my sections.

The lookup field is based on another custom section, and the two sections are linked by a one-to-many relationship. I would like the lookup to show only the related records based on this relationship.

Could someone please guide me on how to apply this kind of filter to the lookup’s data source in Freedom UI?

Thanks in advance!