Am wondering if there is a sentence (or two) that is documented anywhere that captures all–or most–of the character variations and combinations in Gregg (any version).
For example: The quick brown fox jumps over the lazy dog contains every letter of the English alphabet.
Having such a tool would put the rules into practice in a way that is memorable.
It has to have been done. If only as a puzzle for someone who wrote Gregg and liked puzzles. Whether anyone still knows about it is another matter…