The Define Correlations dialog is used to define and modify correlations among assumptions, either in individual pairs (in List view) or in a matrix containing two or more assumptions (Matrix view).
To display the Define Correlations dialog, do either of the following to open a matrix in either List or Matrix view:
Select Define Assumption, and then Correlate, or
Select Define Correlations in the Define group
If the target view is not displayed by default, use the View menu to change it.
For more information, click the listed links and see Correlating Assumptions with Definitions in List View or Correlating Assumptions in Matrix View.