MS Power Point
How to change the order of Slides in Presentation?

On Slide Sorter View, click on the Soft Slides
Slides order cannot be changed once it created
On Slide Thumbnail view, click on the slide and drag to required position
On Slide Sorter View, click on the slide and drag to required position

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

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
Drag a corner sizing handle

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