Quarterly Bin Groupings
Date values can currently be grouped into custom bins as hourly, daily, monthly, or annual items. However, there is no way to easily add a bin for quarterly aggregation.
While it is possible to work-around this issue by grouping the data into 3-month bins, these bins are still not labelled as quarters, but are instead labelled as months (ie. "Jan 2015, apr 2015" vs "Q1, Q2" as column titles in a matrix).
Adding a quarterly binning option allows us to create a seamless hierarchy that progresses from Monthy, to Quarterly, to Annual data.