Relation Many-To-Many from Diagram Devart version 7

Relation Many-To-Many from Diagram Devart version 7

Hi all,
I am working with the latest version of devart 7, with .net core 6 MVC, Visual Studio 2022 and with Sql server 2019.
I need to relate two Many-to-Many tables and in the middle table I need to add more fields besides the two Ids of the related tables, via Diagram.

I have also tried creating the table from Sql Server 2019 and then importing it into Diagram, but it does not see the extra fields for me.

Is it possible to do this and if so, how is it done?

Thank you