From Macros Wiki
- Extrude the currently selcted geometry.
- The variable SolidRef will be set to the number of the solid that was created.
- <z start>
- Z co-ordinate of the start point.
- <z end>
- Z co-ordinate of the end point.
- EXTRUDE -2, 4
- This will extrude the currently selected geometry along the depth axis from -2 to +4.