Hi onesixtyfourth.
Here's a link to Rig Exchange
You can download individual Rigs (and then transfer them to a USB stick and from the USB stick to the Profiler)
If you use Rig Manager, you can access all the Rigs in Rig Exchange AND audition them instantly. As you move from Rig to Rig (with the left and right arrow keys), you can hear them on the Profiler immediately. There's no conscious thought of downloading/transferring-them-to-the-profiler.
When you like what you hear, you can save the Rig to the Profiler by tapping the Profiler Store button (or click the Rig Manager Store Rig In Profiler button).
It's that easy.