Turning it on
Under Advanced settings, set Session type to Rotating.
The dashboard removes the session ID from your username. That absence is what makes it rotate:
Your location stays fixed
Rotation changes the IP, not the targeting. Every new IP comes from the location and filter you selected. With this username, every request goes out from a different Phoenix IP:Narrow targeting means a small pool. A country rotates across many IPs. A city plus a carrier plus a filter may leave only a handful, and you will see the same ones again.
Getting a new IP without switching to Rotating
On a Sticky session, two options:
Both keep your location and filter. Only the IP changes.