Thanks to the answers of fred_dot_u and Sean Houlihane, I did some more research.

There are three features involved here:

• Combing (follow the already printed path when travelling)


• Retraction (pull back the filament while travelling)


• Z-hop (move the nozzle up while travelling)

The relationship between those settings is like this:

• Retraction is only done when not combing*


• Z-hop is only done when retracting

Therefore to lift the nozzle when travelling, one must disable combing and enable retraction and z-hop. This prevents the nozzle from scratching the surface.

_{* it was deemed unnecessary, but that might change in a future version; there is also a plugin that changes this}