This plugin for the Kakoune editor allows you to insert a character n times in Insert mode.
Character repetition is enabled with the repeat-char-enable-on <key> command, which you may want
to add to your kakrc (replacing <key> by the key combination of your choice, for example, <a-r>).
Character repetition can be disabled at any time with the repeat-char-disable command.
Put the repeat-char.kak file in your autoload directory (or in one of its subdirectories).
MIT