Hi,
I'd like to create a string of 6 random consonants (e.g., "kftryp") but with 2 caveats:
1. no letter repeats (e.g., you can't have "kftryk")
2. the string does not contain a consonant that is used in another specified cell (e.g., if the specified cell - A1 - contains "tiger" then "kftryp"...