AttachFile control doesn't restrict attachment category
We are on Pega Platform 8.2.1
For our case type, we have two attachment categories defined POR and CRF.
In the section rule, I added the control AttachFile and set Category="POR", so that on this screen any attachments added are only tagged to POR category.
However, the attachment pop-up dialog box shows all the three categories including 'File' as the default value.
How do I restrict the AttachFile control only to a specific attachment category? The user should not see multiple categories in the pop-up window.
Please see the attached screenshot.