4. Select the  API operation  from the drop-down box and click  Merge  icon to amend the  changes as shown in the next figure. Test Composer page opens. 5. Expand the  Data Sets  panel from the left and add a new global parameter for test data.  When the test was generated, it extracted the values that you provided into a variable as  shown in Figure 6-333 on page 404. Figure 6-332 Build from SPEC options Figure 6-331 Upload the spec file Chapter 6. Practical agile integration  403 You can repeat this step to merge more operations exposed by the API into the existing  test case.