Ctrl+[digit] works as a different shortcut from Ctrl+NumPad[digit]. Currently Clawkser displays Ctrl+[digit] for both cases which creates ambiguity.
This seems to be a limitation of GTK+2. In other applications pressing Ctrl+1 or Ctrl+Numpad1 generates the same shortcut "Ctrl+1", so I don't think this is fixable without rewriting the GtkAccelerator widget and probably a some other things which are parsing shorcuts strings.
Thanks for looking into it Ricardo. Should we probably report it upstream? Or would it be ignored considering a newer version of GTK exists?
You can try your luck, but if I had to bet I'd put my money on the second option for sure :-)
Unfortunately the second option seems unusable by CM. When using --enable-gtk3 for configure I get lots of errors. Is that a separate bug to be reported?
No, there's already one.
What does Claws Mail have to do with this? Clawsker is a standalone application, it could be ported to GTK3 regardless of what Claws Mail uses or does. As for Claws Mail and GTK3, have a look at bug #2371, or the work-in-progress "gtk3" branch in our git.