It would allow grouping custom crops in config.

Add in a hashtag as the first character of a line and the line will be skipped

But when I tried it last time it was only working on the beginning of the file.

What version are you using?
Is it crashing if you try that?

It might work now. We have tried it a bit of time ago.

Problem is my configs are quite fiddly, if you do it wrong, it crashes. I've added in error checking for every config (ecb7102) to prevent it from crashing. If you do something wrong, it will tell you in the log (as well as what is wrong).