There are two possible reasons why you might not be able to add a specific Calculation to your workpaper:
1. Entity type restriction:
Each Calculation template is assigned to specific entity types. If the template isn’t available for your entity type, it won’t appear as an option to add. You can refer to our What calculation templates are available? article for a full list of templates and their assigned entity types.
2. Template already added:
The Calculation template may already be included in your workpaper. If this is the case, you’ll need to locate and use the existing template rather than adding it again.