Is it possible to change the annotation (1, 2, 3, 4....) into text? (example "cube", "box", "light")
This would really help me out big time!
At the moment, it's not possible to change the annotation appearance, but we may implement something in the future. I'll add your '+1' to this feature request and follow up with any news.
You can also use the Viewer API to create a more custom interface.