You might experience that the Modelling Tool doesn't appear at some points in Dreamler. The reason for this is that you are at a far too zoomed out level. We distinguish 10 zoom levels in Dreamler. The image bellow shows a Dreamler project with a zoom level 5. You will not be able to use the Modelling Tool at this zoom level or higher. When you right-click, the modelling tool won't appear.
The following image shows Dreamler with zoom level 4. At this zoom level or closer: 3, 2 or 1, users can use the Modelling Tool.
If the Modelling Tool doesn't appear when you right click, try zooming in.