Interaction between model in Stardog Designer and model in Stardog Studio

The User Interface in Stardog Designer look nices and is easy to use.
As model in Stardog Studio is still a bit more powerfull (e.g. language support), I would like to use Stardog Designer as a kind of addition to the modeling facilities in Stardog Studio.

However, when I create or update a model in Designer and publish it to "Stardog server", it always creates a new model. Is there any possibility to update an existing model in Studio?

A comparable question the other way around. When I update a model in Studio, is there a possibility to update the equivalent model in Designer? All I can do now is adding a new Model in Designer; but once imported, I cannot remove nor update that specific model.

Regards,

René-Michel