First, add the following property to your control:
When using "Document Management" mode, you can specify a forced naming convention for your uploads as well as a versioning suffix. For example, if using the above example if someone uploads a PDF called "Somefile.pdf" it'll be saved
as LeaseAgreement_v1.pdf. If they upload again, it'll version and save the newest upload as LeaseAgreement_v2.pdf and so on.
The following table illustrates the property attributes that are required with the red border to the left as well as all extended options.