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13. Expand JoinTree_1, then expand the event_fields / asset_fields / room_fields / signup_fields / user_cancellation_fields / event_cancellation_fields table:
1314. Select the relevant field(s) and drag it into the appropriate set in the Sets and Items panel.
1415. Click the OK button to save your changes in the Data Source Designer and return to the Edit Data Source page.
1516. Under the Required Information heading, rename the Course Enrollments Data Source in the Name field, in order to avoid confusing it with the Public Course Enrollments Data Source. We will call this Data Source the "CompanyABC Course Enrollments Data Source".
1617. To save your changes to the Data Source, click the Submit button
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