Any selection criteria that have been defined as part of the report and which need to be entered before the report is run will be presented and prompted for by Valet automatically. 

As you can see in this screen other information is maintained about each report including: report run statistics (average run time, how often it has been run, when last used); any special notes about the report; whether it is part of a multi-sheet report definition; and details about the iSeries-400 server run environment (output queue, job queue / description and processing mode e.g. batch, interactive).