Export Mapping with Custom Property

Summary

Export a Mapping with Custom Property to upload to Data Management

Content

We have a requirement to map multiple dimensions from GL to the Account dimension in FCCS. A custom derived property in EDM mapping ViewPoint creates a string that combines the multi-dimension mapping in a format that can be imported to Data Management

Custo Property contains string: #MULTIDIM ACCOUNT=[xxxxx] AND UDn=[yyyyy].

Is there an option in EDMC where this property can be selected instead of the source Node name when performing an Export Mapping?

Or is there another way to achieve a multi-dimension mapping set up and export from EDMC?