How do I save an ERD as a .txp file in Toad for Oracle?

Question

How do I save an ERD in Toad for Oracle as a .txp file or any other format that I can open in Toad Data Modeler?

I have tried to find a way to open the .erx files I have in TDM but it doesn't work that way.

Thank you

Answer 1

I have been looking for a way to do this for a very long time (about a year now) and it would appear that it just cannot happen.