You have the option to save the content of each slider in the library.
Right-click over the slide
Right-click over the slide you want to save to the library – and select “save to library” from the menu.
Save and add to library
Give the layout a name, you can also create categories for better overview, and then click “Save and add to library”.
To do this, click on “Insert module”.
In the tab “Add from library” you will find the filed library entries.
Finally, “Save” the page.