Magic Gestures Blender work around

Hi just recently started using astropad studio with blender, using Apple pencil, imacpro, ipadpro.
Could not get magic gestures to work with zoom and pan, 3d orbiting working fine with the alt key from the function keys.
Blender settings are Pan = Shift mouse/trackpad, Zoom = Control mouse/trackpad, Orbit = Alt mouse/trackpad. Pan and zoom magic gestures and also function keys not working to pan and zoom with apple pencil.
Fixed by “adding” the alt key to Pan and Zoom magic gestures. Works fine now. Not sure why alt had to be added as when using the imac just using the shift key pans, control key zooms and the alt key orbits all ok by them selves.