Hello,
I have this problem:
I want to use the grouping feature in coolite grid. I have "All Users Registration Date" grid, what I need is:
How to Group each users by registration date (only by month and year), and sort the users inside each group by date?

This is a sample for what I want:

User Name Registration Date Notes

Users of Jan 2011:
Jack Stifan Jan 1 2011 abc abc
Jack Stifan2 Jan 2 2011 abc abc
Jack Stifan3 Jan 3 2011 abc abc

Users of Feb 2011:
Jack Stifan Feb 1 2011 abc abc
Jack Stifan2 Feb 2 2011 abc abc
Jack Stifan3 Feb 3 2011 abc abc

Thanks in advance ...