This read-write setting, no longer supported starting with NP Agent 7.1.0, previously chose whether extended R2 digits came from a map or from the user. Because the desc marks it obsolete, any value configured here on current firmware has no operational effect, and administrators should not rely on it to control R2 digit sourcing. For example, an administrator migrating a unit from an older NP Agent version to 7.1.0 or later should expect this object's prior configuration to be ignored and should look instead to whatever mechanism replaced it.