To extend an existing schema

1. Go to Settings > Schema Manager.

2. Select Extend existing entity schema to launch the Extend Entity Schema wizard.

3. In the Select Entity panel, select an existing platform and provide details for the entity that is to be extended.

   See Extend Entity Schema: Select Entity Schema.

   Click Next.

4. In the Select Fields panel, click Add to add new fields for the entity.

   The added fields are optional for the entity.

   See Extend Entity Schema: Select Fields.

5. Click Next.

6. In the Summary panel, review the details of the fields and click Finish.