Adding and New Model

To add a new model to work on, click on Add and choose New Model. Browse to the location where you save the model and load it as you want.

Adding and Editing Primitive Shapes

To add a primitive shape click on Add and choose the shape you want, if you know the dimension you will use adjust it and click on Add to Scene. Once the shape is added you can Change it's dimensions and position and rotate it.

Boolean Operations

You can do Boolean operation on 2 models or shapes by selecting both of them and choosing Boolean Operations and choose an operation

Union

Difference and Intersection