Thank you for the insight;
looks like I need to create portals and filter them appropriately - that will take some thought;
I've not done this before so I'm struggling with the right fields and summary; and sort/filter criteria for the report and the portal
I'm not clear on the portal filter calculation exactly what that is doing.
I created a field Year_month that helps. You can also create a field that has "week" information. But mostly, if you look at the filter in my portals, you see how the change in the drop-down changes the filters. You could script the same and set a $$variable instead which is used in the filters. Then you have a dynamic report where the filters don't change just the variables. The comments in the article, by Bruce, IFRC, mentions this. My intent was to show the filtered portals change. For the "report" by a years worth of months, needs to be 'variable'.