First create your Analysis Workspace
The right click, Jumplink, New as shown below
Select change and then select desired Crystal Report. The example below reflects an unrelated delivered sample Crystal Report
To see the Jump Link in action right click and select World Sales Report and then the Crystal Report will open in a new window.
This is just an example but for sure you would want to create a jump link to a related report.
I am sure we will learn more at BI 2013 in March next year.