| ANGLE | Rotation angle of the steps. |
| DX | Horizontal distance between datum points (when angle = 0). |
| DY | Vertical distance between datum points (when angle = 0). |
| MIRRORX | Mirror around X axis. |
| NAME | Name of the child step. |
| NX | Number of repetitions horizontally. |
| NY | Number of repetitions vertically |
| X | Start X coordinate for placement of datum point of nested step. |
| Y | Start Y coordinate for placement of datum point of nested step. |