Controls how fields are updated.
| Type: | Integer | 
| Saved in: | Drawing | 
| Initial value: | 31 | 
The setting is stored as a bitcode using the sum of the following values:
| Value | Description | 
|---|---|
| 0 | Not updated | 
| 1 | Updated on open | 
| 2 | Updated on save | 
| 4 | Updated on plot | 
| 8 | Updated on use of ETRANSMIT | 
| 16 | Updated on regeneration |