How to copy slides
To copy your slides, start by selecting the desired slides.
Click on the three dots icon on the preview of a slide within the slide feed on the left. Click Select.
Check the boxes beside the slides you wish to copy.
Click on the same icon you previously used, but choose Copy Slides this time on any of them.
To paste the copied slides, revisit the same menu and click Paste.
The copied slides will be added at the end of the slide feed.
You have the flexibility to organize the order of slides: simply drag a slide to the desired position within the feed, customizing the arrangement to your preference.
You can copy slides from one presentation to another in the same way. Simply open both presentations in separate tabs and repeat the above, pasting the slides into your needed presenation.