Menu: View→Analysis Properties→Output→Squared multiple correlations
Displays the squared multiple correlation between each endogenous variable and the variables (other than residual variables) that directly affect it.
For more information, see the Smc method of the AmosEngine class.
Programming
In Amos Graphics programs, you can put a check mark in this check box by using the following statement (Visual Basic):
pd.GetCheckBox("AnalysisPropertiesForm", "SmcCheck").Checked = True