Other errorlevel output possible?

Hi!
First, thank you for that great tool. I work a lot with it. Mostly in bat files when i create update patches.
The only thing I'm really missing are other errorlevel. Now, when a file is missing or has a wrong hash the errorlevel is always 6. For a better handling i would prefer when there was a different level. For example: file missing - errorlevel 6, wrong hash 7, both 8.
Is this possible? 