Komodo IDE/Edit uses the same source as Firefox so if Firefox has Global Menu there must be a way to do the same for Komodo also.
The Komodo team have just added support for the Unity Global menu here: http://community.activestate.com/node/9281
You can install it through Komodo's Tools > Add-ons dialog.
Update for Komodo 8.0
The above mentioned add-on will not work for Komodo 8 so try this: http://community.activestate.com/node/9547