Give option to enable SLA for closed issues

I have read JSD-358 and a few posts in Atlassian Answers from Shahib about why Service Desk does not go back and change existing issues that are already closed... or out of the SLA process for that ticket. First let me say that makes sense and I agree.

However, in a case like we are in now, having really just got going with Service Desk and still trying to focus our SLA in the tool, it would be nice at that time to have the option to reindex all of the issues. We are not changing the underlying theory of our SLAs, just trying to focus your tool to get them all as correct as possible. This has taken a number of iterations, but would be valid for all of our data.

In closing, we just think there should be an option, not the default option at all, but a admin only option that would allow the SLA to be processed on all tickets regardless of their status.