After hard work for half a year the new release 4.3.0 is ready.
https://github.com/RSGallery2/RSGallery2_Component/releases/download/Version_4.3.0/RSGallery2_Component.4.3.0.zip
This is a major update wich contains all the development of the last half year 
 Now 80 % of the backend is redeveloped

More: https://github.com/RSGallery2/RSGallery2_Component/releases