I've been using a simple hex editor to manually modify hex .bin dumps for past 3 years.
I work with .bin hex files which need overwriting of bytes or values (not sure about correct term) in certain areas of the dump.
Example: dumps "HCA" always need bytes from position 00AF to position 10A4 overwritten with bytes "0000".
dumps "TLC" always need bytes from position 20AA to position 40AF overwritten with bytes "0000".
Instead of me constantly doing this manually in the hex editor I want to create a macro that does is automatically for each dump type.