Hi, Maria,

No, you can’t do it now, because it is temporally disabled.
We are working on improving this part of functionality.
We have this feature from the early stages of MTH (2007),
because our aim is to have a real object oriented database.

However, we want it to stay easy-to-use, that is why we keep improving it.
The way dabbledb handles it and the way we had it is not good enough and we will open an upgraded functionality this month with a lot of other improvements.

Thank you for asking and pointing to it.
This topic will be useful for other users.

Thanks!