Document Plus - Multiple Items

The Multiple: Items field lets users add more than one item to a document request and manage them in one place.

Go to Modules > Documents > Setup > Document Types and choose the document type you want.
In the Free fields section, click Add.
Press F2 (Search) in the Field section.
Search for Multiple: Items in the Name search bar and click the Save button.
You can add multiple items by clicking Add. For example, if you want to add three items, simply select the checkboxes and click Add.
and now, in the document request, the items you selected will appear in the Information detail.