Link testers...
The SB Link uses the OEM SB toolchange custom cut files C6,C7,C9) to turn spindles etc. on, off and change tools. IF you have any other content in these files, make sure you save them under a different name (number). They also must be there in the C:\SbParts\Custom folder.

For preview use you can put "END" in each file. When you wish to bring files to your machine, then C6 must used to turn on spindles etc., C7 to turn them off at a toolchange or end of file, and C9 actually allows you to change a bit and/or rezero.
Gary