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

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

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MS Power Point
To insert slide numbers

Choose Insert >> Slide Number
Insert a new text box and select Insert >> slide Number
Insert a textbox and select Insert >> Number >> PageNumber
Insert a text box and select Insert >> Page Number

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