Thanks for the feedback.

The apple keys are part of the design so sadly wont change.

Shift should work for selecting multiple items, so thats a bug. We admittedly haven't done much testing on other platforms.

Grouping and making elements should definitely be in the right click menu. There are some (probably esoteric) icons on the inspector/property panel for these functions.

We'll look into the chrometouch extension and see how we can make it work with the app. I didnt know it was capturing the middle mouse button. Will fix.

Thanks again for the feedback.