Sounds great. I couldn't (quickly) find any screenshots, so I might just download and try.
FWIW, WordPerfect's "reveal codes" feature remains my ideal solution.
Long before the advent of desktop publishing and GUIs and markup languages. Split screen horizontally, vs vertically side-by-side, with WordPerfect's own nomenclature for formatting attributes. Edit in either screen. Live cursor shown in both screens. Live updates back and forth.
Heaven.
I haven't used WordPerfect for decades, so my bias might just be nostalgia.