This is some test code to look for Capital Letters in a test string. Enter a test string requested by the Code Master. The string is copied into stringCopy for verification. Two lists are made, listOfIndices (contains the indices of the capital letters found) and listOfMatches (contains the actual list of letters found).
The Two Costume method mentioned in the wiki page is at the heart of the script (https://en.scratch-wiki.info/wiki/Case_Sensing)