Choose Slide - Slide Properties.

Choose Slide - Slide Properties and then click the Slide tab.

Choose Slide - Slide Properties and then click the Background tab.

Choose Slide - Layout.

On the Layout tab, choose Slide layout.

Open the Properties deck, select Layouts.

Choose Slide - Change Slide Master.

Choose Slide - Change Slide Master - Load.

Choose Slide - New Slide.

Choose Insert - New Slide.

+ M.

Choose Slide - Summary Slide

Choose Layout, then in the Layout dropdown choose Summary Slide

Choose Slide - Expand Slide

Choose Layout, then in the Layout dropdown choose Expand Slide