>>I was using it all the time. Removing it creates major inconvinience for me.
>
>It was not a choice but a necessity until I resolve a major issue. I've been on that for several weeks now and I didn't find a way to keep that old design as part of the new version. It was blocking all new development and a lot of new upcoming enhancements. Once I complete the new version, I will be able to see what would be the best approach to provide a multiple view.

Seeing multiple messages of a thread at once is nice is because it lets you follow the conversation. In fact, sometimes I wish 50 was not the limit or that you could choose to see the rest if the thread is interesting.

Hope you can resolve the problem you are having and are able to bring back that convenient feature.