Yes I missed the translation lookup for that line - I will fix that.
Hex is short for hexadecimal, a base 16 number format (0-F) often used in software!
The beauty(??!) of English, so many different meanings for the same word - A hex is a curse too However, I would expect anyone who wants to do something as advanced as sending windows messages to understand the term Hex as it is intended.
The swap 4th and 5th buttons actions is wrong (in the software). The template is right (no 's' after button). I will fix the code and then the templates should work.
Who said it was supposed to be easy . Whilst I appreciate the efforts, no one as forcing you to do this. If it is too difficult, then just leave it and maybe someone else will do it, or maybe I should just remove all the translations - then it can't go wrong