Purpose
To change the type of nodes (only Boolean operations, primitive or S primitive types) in the tree
Usage
Click the change button to activate it, then click the node you want to change until the desired type (Boolean operation or primitive) appears.
Click change again to confirm and to update the wire frame display.
Comments
The type of nodes that can be changed are:
Example
When clicking once on a node displaying "ball", it will change into "cone". Clicking twice will change it into "cylinder" etc. Clicking on a node displaying "torus" will change it into a "ball".
When clicking once on a node displaying "group", it will change into "union".
