From FreeCAD Documentation
- Stretching X 0,00 mm : narrowing or enlarging of the X (length) of the object (default: 0)
- Stretching Y 0,00 mm : narrowing or enlarging of the Y (height) of the object (default: 0)
- Stretching Z 0,00 mm : narrowing or enlarging of the Z (depth) of the object (default: 0)