Groovy to Get Metadata from Action Menu Row

Summary

Running a business rule from action menu on a row in a form and need to get metadata from that row.

Content

I am writing a custom employee transfer rule in groovy. The action menu requires a row to be selected. The business rule can pickup the row metadata but only if I have RTPs for it.  I would like the groovy rule to be able get the metadata (eg. employee name and department) from the row without RTPs.  That would reserve the RTPs for the target metadata.  I understand how to get metadata from a grid.  Is there a way to only get the grid row metadata that was clicked on to run the rule?