Download: File:Bitmask Converter.app.zip
Description from MGM:
This script takes a long (4 bytes) as an input, then puts it into binary. Then, you can type in a byte number (1-32) and it will change that byte automatically for you. And, the best part is, there's no need to worry about little endian. Just type the long in from hexedit, then click convert, then change whatever byte the HMT plugins tell you to change.