Write each letter in your natural cursive with its connecting entry/exit flicks, as if it stood alone in a word. On save, the cursive filter extracts the extra strokes automatically: prefix (entry), suffix (exit), misc (extra body ink such as a loop).
Ready.
Preview: grey = your ink; green/blue/red = extracted prefix/suffix/misc. Nothing here yet.
Export saves your whole profile (print glyphs + cursive) as default-profile.json — this becomes the app default. Imports can be a full profile or a cursive-only file; samples merge, nothing is overwritten.