How to use TestStand 4.2 sequential model in TestStand 2014

Hi,

   I have a old sequence file write by TestStand 4.2, and the sequence model is using sequential model of 4.2, and we modified it as our own specific sequential model.

   Now we want to upgrade to TestStand 2014, however, we found that our specific sequential model can not work! there are some constructs can't be found in 2014. 

   How can I do to make sequence model from 4.2 to work on 2014?   Please find the attached picture to see the error example in 2014.

Thanks!