Mac users...can you try this?

[Chipp Walters]

Hey guys, I'm trying a simple thing on the latest rev of Rev (2.8.1
gm4) and something's missing.

I create a new stack, create a button and set it's script to:

on mouseUp
  import snapshot
end mouseUp

Then press it. The cursor changes to a cross hair, but when I click
and drag, no 'region' is specified on my Mac. Can you please test and
let me know if I'm not alone? TIA...chipp