A list of my favorite custom keyboard features thus far, courtesy of TailorKey:
- Caps word: Engages the caps lock function only until you hit a word boundary (anything that's not an alphanumeric character, underscore, or backspace basically). So helpful I'm wondering how I ever typed without it.
- Home row modifiers: Tap asdf or jkl; and they function as normal letters, but hold them and they function as modifiers (ctrl, alt, cmd, shift). Tremendous.
- The "select word" functionality. This is a macro for alt-leftarrow (move cursor to beginning of word) followed by alt-shift-rightarrow (select to end of word boundary). There's also a select line, but I haven't found myself using that much yet.




