背景
切換至一或多個母片檢視;在此處,您可以加入放映時要在全部投影片上都出現的元素。
Switches to master slide view, where you can add elements that you want to appear on all of the slides that use the same master slide.
Displays the master notes, where you can set the default formatting for notes.
Add header, footer, date, and slide number placeholders to the master slide.