Action dimensions allow "exclude" rules #20229

Summary

The custom dimension in 'Action Dimensions' only allows "include" rules, is it possible to also allow "exclude" rules. Regex can be used and implemented to do this, but having knowledge of how to use regex is not so common among marketeers. Allowing "exclude" rules would make this easier to use for them.

@goochj03 would you mind explaining how an "exclude" rule for the extract value should work? The regex needs to match something, so we can use the matched value. Otherwise it would match e.g. the full page url unless it contains the excluded value.