SSRS shared datasets used by lots of ssrs reports

I just found I have 2 ssrs 2012 reports that I need to change that use the same shared dataset. These 2 ssrs 2012 reports are in the same visual studio 2012 solution file.
My question is how can I tell what shared dataset is used by the different reports? Basically I would like to know how to tell what reports use specific datasets?
I would like this information so I do not accidently change a shared dataset without knowing how it can affect other ssrs 2012 reports.

If only two just open each and look at datasets node to see which one it uses