Changes

[REPLACE|searchForThisText|replaceWithThisText|textToSearch] - replace "searchForThisText" with "replaceWithThisText" within the text "textToSearch"

[SUBSTR|startCharacterNumber|numberOfCharacters|textToGetSubstringFrom] - get a sub string from "textToGetSubstringFrom" starting at character "startCharacterNumber" (integer, 0 is the first char) with a length of "numberOfCharacters" (integer)