GETKEYVALUES
This function returns a list of all the values of a specified key from an xml variable. It is similar to the GETKEYVALUESA function, which returns the values as an array.
           You can use the asterisk (*) character at the beginning or end of a string as a wildcard. For example, to return particular keys or properties. Asterisks within a string do not act as wildcards. A wildcard search returns only the first matched key or property. 
           
         
            Note: We cannot guarantee the order in which keys or properties are matched.
           
          Syntax
GETKEYVALUES("XML_properties","key","separator")
          Example
=GETKEYVALUES(ReportVariables.rv_xmlvariable.text,"[Product]",",")
           
            Note: In GETKEYVALUES, the
           .text attribute is optional. In GETKEYVALUESA, the .text attribute is required.
           GETKEYVALUES is a list function. It can be used in server lists, relational lists, and in slices.