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.
my new keyboard layout has “caps word” functionality (think caps lock but just for a single word) and my god traditional keyboard manufacturers need to get with the times
with great sadness i had to retire my trusty Ergodox Infinity, but: new keeb! expect typos as i learn how to type again
(MoErgo Glove80)
the Ergodox was also ortholinear with thumb clusters so the transition shouldn't be too difficult, but the default layout on this one is a little different (thumb shift and modifier keys mostly)