Hi James,
If we understand correctly, Bandhub is a collaboration website where you can upload tracks or songs. We would think you would and can do whatever you wanted to your audio tracks or files before uploading them to Bandhub, using any digital audio workstation.
You can use all of the plugins available to you that came bundled with Studio One 3 Artist and if you also have the plug-in support add on, use any third party plug-ins.