The AX adapter (and probably other data adapters in TX) have the amazing feature of right-clicking a table to see all the Field information and relations to other tables. This is an amazing resource and tremendously helps in correctly building the ETL for such a datasource.
However, as long as the window is open, I am unable to do any action in TX. It would be really sweet if the pop-up functioned the same as when you CTRL+W a table to a new window so I can just have the window with information open while I edit the tables.