I have found some minor problem on TDM, Icannot remember if other user has posted similar post before.
The input control overlap to other control,when you are in the edit mode under Entity/Attribute properties, if you accidentally click on the scroll bar, the input control will the move to the to of the other control (Please see screen shot 1 for more information)
Another thing is it would be better to have an integrity feature for the auto-increment (on Mysql0 and (Identity tab) onlyappear if the user selected field is type of numeric, if the user has selected the wrong data type E.g. smalldatetime rather than small int, when you run the SQL code that generate by TDM, it will through an error, the you need to find where it when wrong again. Please see screen shot 2 and 3 for more information.
Please let me know if you want more information.