I am using the Serial measure add-in to pull  information from a meter. The data range can be anywhere from 100 to 600. 
 
I want to have Serial be set for the max 600 lines, but if a test only runs for 500 lines,  I want it to stop running the last 100 lines.
 
Is their anyway for me to modify the add in, or have a sub routine run in conjunction with the add-in to do this?