How can I output the RC-Pier STM analysis for all Load Combinations to Excel?

How can I output the RC-Pier STM analysis for all Load Combinations to Excel? In the analysis tab, i tried using the "Print..." button and choosing "All combinations to Excel File". This appears to only output analysis related to the entire hammerhead structural model, not internal STM members and nodes. The STM has 19 member (labeled ST 1 thru ST 19) Any suggestions?