Only works with a mouse or trackpad. How can you enable + / - keys to work as well.

What steps will reproduce the problem?
1. Grab you local thinkpad.
2. What keyboard combination will allow a zoom out / in sans the mouse
3.

What is the expected output? What do you see instead?

Zoom in / out

What version of the product are you using? On what operating system?

Latest.

Please provide any additional information below.

Original issue reported on code.google.com by skl...@pointcircle.com on 6 Mar 2012 at 9:55

Duder-onomy / svgpan

Only works with a mouse or trackpad. How can you enable + / - keys to work as well. #15