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.

Choose Slide - Change Slide Master.

Choose Slide - Change Slide Master - Load.

Choose Slide - New Slide.

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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