LibreOffice 7.1 ヘルプ
Switches to one of several master views, where you can add elements that you want to appear on all of the slides in your show.
Choose View - Master Slide
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.