Ok, I added this to the Cog branch, still working on an issue in the squeak trunk branch. 

On Mon, Nov 9, 2015 at 12:34 PM, Javier Diaz-Reinoso <javier_diaz_r@mac.com> wrote:
I enclose a zip file with modification to SqueakUIView.h/m and SqueakUIController.m to enable the Cmd, Ctrl, Arrows and Cmd-. key combinations using a bluetooth keyboard, also using a shake to generate a Cmd-.

I am using (abusing?) the “approved” ways, and appears to be working OK, more testing specially with a Apple keyboard is needed, I only have a cheap keyboard made in Taiwan.

John M. McIntosh. Corporate Smalltalk Consulting Ltd https://www.linkedin.com/in/smalltalk