I recently changed all of the NULL in my project to nullptr. The older version of the product still uses NULL and I won't change that. I would love to be able to ignore certain differences when using Diffzilla. For instance tell it to ignore the differences between NULL and nullptr. This would save me lots of noise when I compare old code to newer code that has been modernized. I would like to be able to specify multiple of these and it would be even better if there could be a way to save this in a file that Diffzilla could find in the folder I specify to compare.