MS Power Point
To maintain the perspective (height and width ratio) of an object when resizing, you need to

Drag a corner sizing handle
Press and hold the shift key while dragging a corner sizing handle
Press and hold the alt + ctrl keys while dragging a middle handle
Press and hold the shift key while dragging a corner sizing handle & Drag a corner sizing handle

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MS Power Point
To edit the text within the boxes of an organization chart, you

select the box, then make the changes
highlight the text, them make the changes
select the box and text, then make changes & select the box, then make the changes
select the box and text, then make changes

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