Make Links attachment as mandatory under Item card

HI all,

I have a requirement where I want to make Link attachment mandatory under Item card page.

Problem is ,I inspected the page to see the page for links to use it in page extension on item cards ,It says the page is Links(SystemPart) but when I want to use the same name in AL,it doesnt let me.

Below is the ss,I want to make this “Link” mandatory:

pageextension 50117 “Attachments” extends “Document Attachment Factbox” //Want to use Links here instead of Document Attachment Factbox.

{
layout

{
// Add changes to page layout here
modify(Documents)
{ //BlankZero = true;
ShowMandatory = true;

}
}

var
NoDocumentAttachmentsErr: Label ‘Please attach Document’;

trigger OnClosePage()

var
DocAtt: Record “Document Attachment”;

begin

DocAtt.Reset();
DocAtt.SetRange(“Table ID”, 2000000068);
DocAtt.SetRange(“Document Type”, DocAtt.“Document Type”::Quote);
//DocAtt.SetRange(“No.”,rec.“No.”);
if not DocAtt.FindFirst() then
Error(NoDocumentAttachmentsErr);

end;

}

Thanks in Advance.