Create and place Objects and their Relationships on Models in Adoit using REST API

I want to create and place objects (elements) and relationships (connections) on models (diagrams) in Adoit from BOC using REST API.

I checked several sources. The most promising ones were:

• https://developer.boc-group.com/adoxx/en/API-introduction/
• https://github.com/BOC-Group/developer-examples/tree/master/java

They told me how create an object, but not how to create a complete model.

So my question is: is it possible at all to create a complete visual model (view) in Adoit using REST API?