Right, thanks for bringing this up. It looks like my implementation in the beta is not correct. I will be reverting beta.txt item 7 for the next version, so $regml() will go back to working how it did in previous versions.
However, I have added a $regml().group property that returns the () group number that matched the item.
I have also added $regmlex(name,N,M) where N is the () group number, and M is the Mth matching item for that group. If M is not specified, it defaults to 1. This allows you to directly reference a matching group item if you need to, which is the original issue I was trying to solve. This will be in the next version.
