It only works on Mac I think, because all the regular shortcuts are mapped with cmd so ctrl and alt are "free".
Peter, to open a new Nautilus window you can use cmd o + b like in World. I do not know if it is alt or ctrl in Linux, but it should work.
Date: Fri, 24 Jul 2015 11:55:12 +0200
From: nicolaihess@web.de
To: i.uhnak@gmail.com
Subject: Re: [Pharo-dev] Nautilus shortcuts from code pane
CC: pharo-dev@lists.pharo.org