In the Field Settings page in SCM, a text field can be assigned a substitution rule, which permits an extracted text value to be substituted in part, or as a whole, with another value. This works in a similar way to the standard VB replace command. One substitution rule can be assigned per field.
Substitution rules are contained in the Substitution Rules page in SCM, which has the following structure.
| Fieldname | Explanation of usage |
|---|---|
| Index | Substitution rule index. |
| Original | String value to be replaced. |
| Replace | String value to be substituted. |