Hi bpatrey,
The Data Wizard was indeed removed in VuGen 12.53.
A new Import Parameter feature was added in this version, allowing to import parameter values from a CSV or a text file.
You can use this feature to obtain values from practically any data source, by exporting the source data into a file and then importing it into VuGen.
See usage instructions: http://lrhelp.saas.hpe.com/en/latest/help/WebHelp/Content/VuGen/Importing_Parameters.htm.
Edo