Use Single Object date filters on Cross Object reports

[pcleary]

It would be great to be able to use "last week", "last month" and "last year" type filters that we see in single object reports be available for use within cross object reports. It would make filtering by those broader date ranges a lot easer when trying to report on multiple objects.

[hannahflat]

This is really needed. Without this ability cross object reports become more of a pain as you have to be constantly updating the dates on them. 

[CWardle]

Really needed, I can't have an automated-send report if the date filters can't be automated "this month so far" etc.