We need to create SNMP models and add them to previously created Global Collections using REST. We tried using the parentmh attribute, but it us only useful to add these created models to containers. We haven't found the way to add the models to Global Collections, and we also tried using the CollectionsModelNameString's attribute when POSTing the model creation, but as it is not a writeable attribute, we got an error.
So, we think the model should be created first using POST, and then a GET tunneling action to add that model to the Global Collection. But we don't know what are the actions available.