Regional streaming

[andrus2000]

Is it possible—and if so, how—to stream the main program to, say, 10 Icecast servers/mountpoints, but have different commercial breaks on each of them?

[radio42]

Yes.
The feature is called Multi-Region Advert.
It is for example explained here: viewtopic.php?p=8553

You need a license and instance for each region.