Hello,
If your sequence file has a large number of sequences, the best way to rearrange the sequences is to build an application which does it using the TestStand ActiveX API. Here is an outline of something you could try. First, you can get a reference to your sequence file using the GetSequenceFileEx method of the TestStand Engine. From here you can get a reference to each sequence in your sequence file using the GetSequence method. Once you have a reference to each sequence in your sequence file, you can use the Name property to get the sequence name. Once you have the name you could order the sequences and then insert them into your sequence file using the InsertSequenceEx method.
This should get you started with building your application which rearranges the sequences in your sequence file. Also, there is good documentation on the TestStand ActiveX API for TestStand 2.0.1 in the TestStand Programmers Help. This can be found by going to Help >> TestStand Programmers Help. I hope that this information is helpful to you.
Regards,
Kevin L.