what function do I use to programmatically create End steps with onNewStep

Hi,

I want to create a custom step type that is a Label with an End step for labeling blocks of code.

I tried Custom substep with OnNewStep, and I put in the function OnNewStepWithEndStep  from NIFlowControl.dll, but it's not working. By that I mean when I drop the Label step the end does not get dropped too. 

I found this link, but it's lacking the detail I need. Thanks.

http://forums.ni.com/t5/NI-TestStand/Custom-step-to-Open-edit-expression-when-placed-in-sequence/m-p/858481#M23163

cc