Webcore has their own forum now, and most of their experts hang out there. So you will probably get the fastest answer if you ask your piston questions there. 
https://community.smartthings.com/t/introducing-the-new-webcore-community-forum/96259
Webcore has their own forum now, and most of their experts hang out there. So you will probably get the fastest answer if you ask your piston questions there.
https://community.smartthings.com/t/introducing-the-new-webcore-community-forum/96259