Two iteration plans are sharing one dashboard

Hi,

we have started to build an iteration plan for each of our Scrum teams. This works fine.

A few weeks ago we started to "add" an individual dashboard to each of our iteration plans. Everything works fine, but I have the problem, that TWO plans are using the SAME dashboard.

I didn't find a way to tell RTC that I need a new dashboard for this plan.

Does anyone have an idea how I can "unlink" one dashboard from a plan so that I can create a new, blank dashboard for this team?

Regards
Michael