Controls the single-line display in ortho views without losing the specified single-line pipe definitions.
| Type: | Switch | 
| Saved in: | Registry | 
| Initial value: | 2 | 
| Value | Description | 
|---|---|
| 0 | PLANTORTHOSINGLELINEPIPING command is disabled. | 
| 1 | PLANTORTHOSINGLELINEPIPING command is enabled. | 
| 2 | PLANTORTHOSINGLELINEPIPING command is enabled and single-line pipes are selected when using the command. |