Add a same-day date range for A/B comparisons

[#1]

In comparison reports, it would be useful to run the report for this-month-to-date compared to the same period in the prior month. So if the current day of the month is 10, compare to the first 10 days of the prior month. As the current month rolls to 11 days, the compare to the prior month rolls to 11 days.

[#2]

I would recommend against this feature. Most websites see significant weekend traffic lulls. If you use this you would often be comparing disparate periods due simply to a reduced weekend count. i.e, Feb 1-10 has one weekend whereas Jan. 1-10 has two. 

Comparing full weeks is much safer.

[#3]

Understood. Might not be useful for everyone.