So, I want to have a filter for a gadget - using Two Dimensional Filter Statistics
- all tickets during time period
- status (x-Axis)
- assignee (y-Axis)
My approach:
status was in ("In Progress", Done, "To Do", Open, "On Hold", Completed, Testing) during ( start, end) AND assignee in (dev1, dev2, dev3) ORDER BY assignee ASC, status DESC
however this seems not to work 
Issue: it shows the current status, not the status the ticket had during that time frame
HELP