I want to get a quick feel of how important an issue is. To do this, I need to count how many other tickets link to the potentially important tickets.
One view into the data I want is a simple table with the columns KEY and LINKED_TO_COUNT. Then, I'd be able to sort on LINKED_TO_COUNT to find the most important (linked to) issues on top.
We currently have ScriptRunner if that helps, but not an extra dashboarding addon. I do not see an way to do this with built in dashboard gadgets as the "Group By" fields are randomly limited per gadget. I also have no idea if ScriptRunner can do counting/statistics itself, outside of a dashboard.