Hi Community,
we have this situation, where we need to classify each row of our attachments detail with a lookup value that we have created previously.
For example, in our custom object Quote we have an Attachment detail that receives two types of Attachments one called "Proposta" and the other called "Orçamento".
The following screenshot shows the LinkPageV2 with the lookup we have created.

In order to implement this we've created two replacing objects, one for the object File with the lookup field we've created previously and the other QuoteFile that calls this "new version" of our File, as you can see in the screenshot bellow.

We want to know if this is the correct way to add a new field in the object responsible for the Quote Attachments.
After we implemented this field, we need the user to classify each of the added attachments in the detail. So we tried to add on our Attachment detail an editable list like this https://academy.creatio.com/documents/technic-sdk/7-16/adding-detail-ed…, but the logic we did cannot find the columns of our detail. Any idea on how to achieve this, create a editable list for the attachments detail?
Thanks in Advance.
Best Regards,
Pedro Pinheiro