Delete image from a repeating group

Are custom states the only way to delete an image from a repeating group of photos in a social post? Screenshot below shows “x” icon triggering the deletion, a repeating group of photos, a blue upload button, and a blue edit photo

Delete a thing, delete plugin, delete an uploaded file, make changes to a thing: none of these actions seems to work because I don’t know how to identify this item in a list. This is just deleting the thing, not in the file manager.

The plugin does not document delete File & MultiFile Uploader · BEP Plugin | Bubble

On deadline and would appreciate any advice. Knowing custom states is the only way to do it is helpful. Otherwise, is there an easier way? Thanks in advance!