Hey Sebastian,
Normally we have just 1 center location and zoom, but you can override this in the menu using this trick:
compojoom.com/support/documentation/hotspots/ch05s08
You'll still have the same component with the same categories, but you can determine for each button the start location and zoom.
Berlin will be zoomed on berlin, Paris will be zoomed on paris etc. The user will be able to zoom out & navigate to paris on the berlin page. He will also be able to zoom out and navigate to berlin from the paris page, but this is how maps work
Cheers,
Daniel