Add a Sampling Fit Approach Add approach to the study. In the Explorer, right-click and select Add from the context menu. In the Add dialog perform the following steps: In the Label field, enter a name for the Sampling Fit. For Definition from, select whether to clone the Definition defined in the study Setup or an existing approach. By default, the Definition defined in the study Setup is selected. Under Select Type, select Sampling Fit. Click OK.