Would start with the self-support that Finsweet has - just add the query parameter to the end of your published URL:
https://finsweet.com/attributes/support
But additionally, quick peek at the preview - I dont see any attributes on the slider. You also shouldn't nest the slider into the CMS collection. You want the collection and slider to be separate. Finsweet Javascript will take care of nesting the CMS into the slider.