To modify details for a parameter, click Modify. Select Job No. from the drop down list which displays all existing jobs. Select Machine No. from the drop down list which displays all machines which have jobs defined for them. All related fields are displayed. Select Parameter Code from those displayed in the parameter grid on the Parameter tab. You can modify details for the parameter only if no readings have been taken for it. Changes made are reflected in the Work Order QAP. Select the required tab from Detail, Sampling, Data Access, Limits and Charts.