Do one of the following:
Choose CommandCtrl while you drag. The mouse pointer changes to a plus sign. You can also drag a copy of a slide into another open LibreOffice Impress document., select one or more slides, and then drag the slides to another location. To select multiple slides, hold down shift and click on the slides. To create a copy of a selected slide, hold down
Choose View - Outline, select a slide, and then drag the slide to another location.
Choose View - Normal or Notes, select the slide preview on the Slides Pane, and then drag the slide preview to another location.
To temporarily remove a slide from your presentation, go to Slide Sorter, right-click the slide, and then choose Show/Hide Slide. The number of the hidden slide is crossed out. To show the slide, right-click the slide, and then choose Show/Hide Slide.