The reference information for the Centerlines application is stored in a Data Dictionary named ‘factory-operate-centerlines’ in STRUCTURE.
To modify centerline target values, upper and lower tolerances for targets, the conditional target value formula, the description of the centerline variable, and other key information for each centerline variable, please follow the instructions in the section ‘Modifying a Data Dictionary’, part of our STRUCTURE documentation here:
https://docs.sightmachine.com/docs/data-dictionaries
If you require a new centerline variable to be added to the application, please file a Support Request in the Sight Machine Support portal.