MS Power Point
To select all the boxes of an organization chart

All of the listed here
Press and hold the shift key and click each box
Click edit, select all
Right click the chart background click select all

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MS Power Point
You can show the shortcut menu during the slide show by

Clicking the shortcut button on the formatting toolbar
Clicking an icon on the current slide
Clicking the shortcut button on the formatting toolbar & Right clicking the current slide
Right clicking the current slide

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