[primelens]

On a Macbook, the scroll wheel equivalent is the two fingered scroll and that doesn't seem to work for me (scroll the page).

[bigreddot]

Do you have the tool selected in the toolbar above? If so, please file a ticket on GH about this. Most of the Bokeh devs are on OSX so it would surprise me if it does not work on OSX, but if there is a bug we want to fix it!