Considering how often this comes up would it be a good idea to have a check and have a maximum number of days that you present with Newest Nodes?

In a similar vein I would find it very convenient if there was a way to have Newest Nodes accept a time range (or post range). During the day if I have a few minutes to read and I am a bit behind it is impossible to catch up on everything and mark all read. So it accumulates to the end of the day. But if I could take on an hour here, an hour there then catching up on PM in pieces would be more feasible.

(It would also help people who want to catch up on what happened over a break.)