Overriding job conditions
To give you more options for scheduling jobs, you can use the Workflow Manager to define formulas for the
                Job object. The Formula Editor for the Job object
            includes a code snippet called Override condition (under the  node) that you can use to set conditions
            through formulas.
The snippet uses the AddOrUpdate method on the
                JobConditionCollection object. You can use the four parameters to
            set the PropertyName, Value,
                ReadableValue, and ValueMoniker properties of the
            condition you want to override (corresponding to the PROPERTYNAME, VALUE, READABLEVALUE,
            and VALUEMONIKER columns in the CORE_BATCHPROCESSING.JOBCONDITION table).
The name is required. To set the value, enter either a value (second parameter) or a readable value and a moniker (last two parameters).