the above shortcut works great. the actual shortcut execution is cmd+shift+P
I do NOT get your network alert (incoming network conn. is not blocked in my firewall either)
We should note for users that the Resources.xml file syntax uses Windows key conventions: thus, "Ctrl" results in using the command key on Mac, and "Alt" translates to the Mac Option key. (I don't see a way to use the Mac's Control key.)
I changed the syntax to
<Entry Key="Alt;Ctrl;P" Command="25014" Param="0" />
(Command + Option + p) to make it a little less likely to conflict with some other shortcut.
But I cannot make the network error message go away short of turning off the Firewall altogether. @bMinor, are you running Yosemite?