When editing the Display text for a two valued list both values must be unique in their respective lists. If the requirement is to change just one of the values you must work around this by making changes to both twice. Example. You want to change the short form SGCD to SCD. First change both 'Surgeon Group Clinic Dallas' to 'Surgeon Group Clinic DallasX' and 'SGCD' to 'SGCDX' then change 'Surgeon Group Clinic DallasX' to 'Surgeon Group Clinic Dallas' and 'SGCDX' to 'SCD'.
