I have a few product families and one test sequence for all of them. Not every step (subsequence) in the main sequence is executed for each family, and steps can have different test limits depending upon family/part number. dTRAK manages all of this for me, I just have to configure all of this in dTRAK (it has a web interface for this). If I had thousands of parts, I'd ask G2 to write a custom program to automate the configuration.