Feel free to write the code for this and submit a PR at https://github.com/mgsloan/todoist-shortcuts

You can also download the code, modify it, and load an unpacked extension. Should be straightforward for reasonably technical people, you don't need to be a programmer. This is documented at https://github.com/mgsloan/todoist-shortcuts/blob/master/readme.md#how-to-customize-keyboard-shortcuts