Button to open a lightbox with a slider/gallery

Hi there,

I just installed your Responsive Lightbox & Gallery plugin and I was hoping to be able to create a slider/gallery that opens in a lightbox when the user clicks a button.
Precision: my page (and the button) are created with Visual Composer.

If that is possible with your plugin, I haven’t yet been able to understand how to do it.

Thanks in advance for your reply and your help.