MS Power Point
You can add multiple subordinates to a position by

Clicking the subordinate button as many times as the desired boxes
Clicking the subordinate button each and every time you add a subordinate
All of the listed here
Clicking the subordinate button as you press and hold shift

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MS Power Point
How to show the same presentation continuously?

by enabling the option “Repeat Presentation”
by enabling the option “Loop continuously until ‘Esc’”
by enabling the option “Show same Presentation”
Presentation cannot be continue once it finished

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