Add an itemname porperty to @AttachmentNames

@AttachmentName gets the name of all Attachment in a document. I need a posibility to get the names of the attachment in only one iten/field.

in all my documents, I have a subform for attachments with two fields

PrimaryFiles : The files I want to share with all users (pdf)
SecondaryFiles : The working files (docx, xlsx ....) for changes that results in a new pdf for all users.

In all views there is a Attachment icon, to open the primary files (with inview edit on click).
It would be nice to use a hideformula for the icon @AttachmentNames; "PrimaryFiles") = ""
or get a list of all attachment names in PrimaryFiels.

I have a workaround in lotusscript to calculate the fields PrimaryFileNames and SecondaryFileNames on every save that only works in postsave (sometimes the user have not the right anymore to save the document in postsave in workflow forms).