In the mason track parser, you could parse everything, as the current parser does. But you could also selectively parse only one of the three elements - times, titles, or artists. Currently, this has been lost; I can turn off parsing of times, but that just results in all already-entered artists being dropped in favor of whatever is (or isn't) in the new parse text.

Theoretically, I could also just turn off the "Parse track artists" checkbox, and then only have titles (and durations, depending on that checkbox's state) be parsed, but it seems that that checkbox is set untoggleable if the release is VA and you're either editing an existing release, or entering the RE with posted data (ie, via the add cluster plugin).