Hello,
You need to enter the Slider Revolution element on your page and choose another existing slider on your page.
IF you want to edit the slider, enter the editing mode of the page where the Slider Revolution displayed. Check which one is used as shown here: http://prntscr.com/isshej
Then find this slider in the Slider Revolution plugin as shown: http://prntscr.com/issi0h
Finally edit or create in the slider settings as shown here: http://prntscr.com/isyjfv
Here is the documentation on the Slider Revolution: https://revolution.themepunch.com/joomla/documentation/
Best Regards
.
