Question about attachments

Hello Community. Hope everyone is staying safe and doing okay.

So, I have a custom DocType and it has an attach field. When a user uploads a document using the attach field, the attachment uploads just fine but goes into the /private/ thus making it impossible for other users to view the attachment. Also, it does not get attached to the side of the document (Attachments). The yellow lock icon is almost invisible, and must be clicked on each upload.

I would like the lock icon always set up “public”. Do I have to insert some kind of expression into the field value to make it happen?

Thank you guys, stay safe!