Property alteration types
| 00 | kAlterationBlockName | Block name |
| 01 | kAlterationColor | Color |
| 02 | kAlterationLayer | Layer name |
| 03 | kAlterationRotation | Rotation |
| 04 | kAlterationElevation | Z coordinate in the user coordinate system |
| 05 | kAlterationHeight | Text height |
| 06 | kAlterationLineType | Line type |
| 07 | kAlterationScale | Scaling factor. For example "1.2" = 120% |
| 08 | kAlterationStyle | Text style |
| 09 | kAlterationText | Text value |
| 10 | kAlterationThickness | Thickness |
| 11 | kAlterationWidth | Line width |
| 12 | kAlterationTextEntity | Text entity definition |
| 13 | kAlterationHatch | Hatch definition |