Question

which way is used to display and work with multiple slide at once​

Answer 1

Answer:

On the Home tab of the ribbon, in the Slides group, click the arrow below New Slide, and then select Reuse Slides. In the Reuse Slides pane, click Open a PowerPoint File. In the Browse dialog box, locate and click the presentation file that contains the slide that you want, and then click Open.

Answer 2

On the Home tab of the ribbon, in the Slides group, click the arrow below New Slide, and then select Reuse Slides. In the Reuse Slides pane, click Open a PowerPoint File. In the Browse dialog box, locate and click the presentation file that contains the slide that you want, and then click Open.