Aide LibreOfficeDev 7.6
Choose Slide - Slide Properties.
Choose Slide - Slide Properties and then click the Page tab.
Choose Slide - Slide Properties and then click the Background tab.
Choose Slide - Layout.
Choose Slide - Change Slide Master.
Choose Slide - Change Slide Master - Load.
Choose Slide - New Slide.
Dans la barre Présentation, cliquez sur
Nouvelle diapo