Hello, Naomi.
I'm trying to build an attachment selector on "mobile_add_document_to_category_view". Unfortunately, I might not see it's been showed correctly on this mobile view. I assume I can browse & select documents from local Photo albums.
The third screenshot is my php codes when I create a function "createAttachmentsSelector". Are my written codes correctly may I ask ?
Can you describe a bit more details about these 6 steps if you have a chance, please ?