MS Power Point
One thing the common tasks button allows you to do is

Apply a design template to a slide
Insert a new slide
All of the listed here
Choose a new layout for a slide

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MS Power Point
To change font size of a selected slide title, you:

Click the toolbar’s Increase Font Size button
Click the toolbars Font dropdown arrow and choose the font you prefer
Click Title, New Font, OK
Click Format, Title and choose a font from the font tab

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