Hi,
In Page Designer, when you edit a modal page, you cannot see what pages calls this modal page. It would be good to have a list of the pages or buttons calling that modal page.
Best regards.
The problem with this is.. absolutely any page can call a modal page - which is true of any bespoke custom code for the same purpose. It would be fairly expensive of a query of all pages that might be directed to open up a particular page by number or alias from a button, branch or otherwise - and then you'd likely miss those that use custom code.