Hello,
First of all you have to create a slider from the “slider” option shown under the Slides option in dashboard: https://jmp.sh/EoqYIaQ
Then you have to create slides to add those slides in that slider. You can check the below screenshot for adding a new slide and to assign a slide to specific slider: https://jmp.sh/LIWE78x
To setup the slider you just have to edit your specific page with Wp-Bakery page builder and add the “Slider” element as in the below screenshot: https://jmp.sh/RAowqbD
After adding the slider element you have to select your specific slider from the dropdown list:
https://jmp.sh/zgFRxR8
Best Regards.