This adds INS+GPS, DataLink, and IFF Mode 3, and the order is optimized to make the auto-startup faster.
Just save a backup of your existing file <<dcs install location>>\Mods\aircraft\JF-17\Cockpit\Scripts\Macro_sequencies.lua.
Place this file here <<dcs install location>>\Mods\aircraft\JF-17\Cockpit\Scripts\
You're done.
Test it out with LWIN+HOME, when the script finishes it tells you to make sure your datalink is active. Just look for the 'NES' on line 3 of the UFCP.