exportData vs exportMeasure -mask option

Hi,

There is a data extraction script which extracts the data using the exportData utility for a specified range, output is a delimited file.

Now there is a new requirement where the same script should extract data only for some stores. the storelist is provided and script should only extract data for only those stores and not for all stores. In exportMeasure there is a option of -mask , by using the same option this stores filtering can be done, but exportData does not have this option. Another way to achieve is to create a rule which will filter the data from the measure and laod it into a temp measure and then export this temp measure, but this rule takes time.