Yes, but loading multiple models in the same scene requires accounting for a shift in node IDs.
Here’s how to do this: After you’ve loaded your first model, you’ll want to keep track of the shift before loading a new model. These two lines show how to capture the shift amount from the viewer:
const model = hwv.model;
const nodeOffset = model.getLowestAvailableNodeId();
Now anywhere you need the persistent node ID you would do something like this:
const id = selection.getNodeId() - nodeOffset;
This will always allow you to get back to the persistent ID for retrieving associated application level data.
For more information, see the Assembly Tree Node IDs page.