Use the Working environment to edit a presentation. Switch to the Presentation environment to present it.

Using Presenter Notebook Controls...

Switch from working on a presentation to presenting it

Click Start Presentation in a presenter notebook toolbar to start a presentation:

Switch from presenting a presentation to working on it

Click the menu icon in the upper-right corner of the screen () and choose End Presentation to end a presentation and return to working on it:

Using the Format menu...

Switch from working on a presentation to presenting it

Choose Format Screen Environment Slideshow Presentation to start a presentation:

Switch from presenting a presentation to working on it

Choose Format Screen Environment Slideshow Working to end a presentation and return to working on it: