Hi, it's possible to zoom-in with one finger double-tap in 'compass' mode which provides you with angled view of the area around you, oriented in the direction in which you're facing or moving.
But 'track' and 'compas' modes will be reseted while zooming with two fingers.
Galileo Offline Maps
All the ideas and discussions
Can we zoom the map while tha map is in the orientation of the compass of the phone?