While it was named with TM2 in the title to reference TrackMania², Wawawawu! came to me with ShootMania in mind and it works in ShootMania! You just need to add &SM=1 in the Manialink calls.

For help on how to use this tool, please refer to the readme.
Something missing in the readme (will fix it soon) is that you'll need to update the URLs requested in Main.php by yours. Search Http.CreateGet to find them. But i'll update that so you'll just have to change a single variable value.