current-group and current-grouping-key functions in ICS

Summary

current-group and current-grouping-key functions in ICS

Content

We have a requirment to directly edit the .xsl file in order to create a for-each-group loop.  Creating the for-each-group imports back into the integration fine, but as soon as we introduce either a current-group() or current-grouping-key() function call we are getting the one or both of the following errors when importing the resulting .xsl file:

Error occurred during processing map file:

-javax.xml.transform.TransformerException: Could not  find function: current-group:

javax.xml.transform.TramsformerException: Could not find function current-grouping-key

Can you please let me know if these functions are supported by ICS, if yes, what is causing the error?