Hi dear,
We have used Revslider plugin.Alot of videos related to revslider you found on youtube.Please watch those videos.
We also attach a video please also watch this video.
https://mega.nz/file/5D51QAZY#htWYtvN16vHkQashgkdiPalOHBsNEsHfK5GqQ_j7NF8
Regards
This one
Hi I want To Change Home Slide Pictures