yah thats right.
I'll do it now with hex editor and bruteforce save tool to decrypt/encrypt and generate the new crc after editing.
But its sad, would be so much nicer with this tool.
I don't use it to cheat diamonds or such gamebraking things.
Just trying to compensate things they should have added to the game long time ago.
Like Beacons to get haste 2 for instand mining.
So i edited my Mining pickaxe to efficiency X