Specify the model terms for Analyze Taguchi Design

Stat > DOE > Taguchi > Analyze Taguchi Design > Terms
Specify the terms (control factors) to use in your model. By default, Minitab selects the main effects and the interactions that you specified when you created the design, or you can choose the terms directly from the list of all available terms.
Available Terms
Lists all the terms that you can add to the model.
Selected Terms
Lists all the terms that Minitab includes in the model.
Use the arrow buttons to move Available Terms to Selected Terms. Select one or more terms in one of the lists, then click an arrow button. The double arrows move all the terms in one list to the other. You can also move a term by double-clicking it.
Factors
Displays the control factors that are included in the model. This column does not take any input.