i use the default trackpad navigation settings in Rhino regarding the trackpad.
seems grasshopper should act similar.
two-finger pinching for zooming & two-finger swiping for panning
?
(actually, i couldn’t even get the canvas to pan with the trackpad… anybody know the trick? )
Two-finger press and drag to Pan in the canvas for now.
There is a YouTrack item to make canvas navigation the same as Mac Rhino parallel viewport projection navigation:
http://mcneel.myjetbrains.com/youtrack/issue/MR-2514
Pinch Zoom:
http://mcneel.myjetbrains.com/youtrack/issue/MR-2468
weird… never seen that work before in any app 
but will certainly be ok for the time being.
[quote]
There is a YouTrack item to make canvas navigation the same as Mac Rhino parallel viewport projection navigation:
http://mcneel.myjetbrains.com/youtrack/issue/MR-2514[/quote]
cool… thanks John.
i’ll make sure to read through the youTrack items prior to posting any more of my findings… i think i’ve repeated at least three of them now
Nothing wrong with repeats.
If a youtrack item exists for something you are seeing, please report it here on discourse anyways. This helps to reinforce the importance of the issue.
I was just about to post a request for this trackpad behaviour and this topic showed up.
I imagine it’s better to revive it than post a new thread?
It’s really disconcerting to have this behaviour difference between the trackpad two-finger scrolling in the Mac Rhino parallel viewports and the required clicking & dragging in the Grasshopper canvas.
I’m sure most trackpad users would love to see this fixed! 
We agree. We’ll get it working.