`Ctrl-D` is shadowed on macOS
Ctrl-D is a globally supported key binding for forward character deletion, which is a very basic and very common editing operation, but it's assigned todef as.
If I'm not mistaken, even VS Code defines Ctrl-D as the deleteRight action by default.
The alternative on Apple keyboards is to use Fn-Delete, which is not so commonly known (probably), neither as convenient as Ctrl-D (especially on smaller, custom keyboards).
Ctrl+Shift+D however is not defined by default, so that would be one alternative as a default binding.
It would be also more memorable, since the Viewer: dropdown right next to it also has a Shifted shortcut.
To prevent further complaints about key bindings, I concur that https://github.com/nubank/morse/issues/3 would be a great feature.
Thank you for the ticket. I'll give this some consideration and get back to you.