Duplicating a DataForm.NET is useful when you'd like to design a similar DataForm.NET as an existing DataForm.NET. Or it could be a matter of backup when you'd like to modify a DataForm.NET but worry about messing it up and couldn't get original DataForm.NET back.

1. Open DataForm.NET Manager.
2. Choose "Tools/Duplicate DataForm.NET " from menu to open duplication page. 
3. Select an existing DataForm and enter a new DataForm ID to duplicate. The new DataForm.NET and original DataForm.NET are identical except for the DataForm ID. So you can also use this tool to rename DataForm.NET. When you duplicate a DataForm.NET, the DataForm, GridForm and Criteria will be duplicated at the same time.