Testimonial Slider
One testimonial at a time in an auto-advancing slideshow, in a Normal or Large style.
Testimonial Slider shows testimonials one at a time in a slideshow with dot navigation, a focused alternative to the grid in Testimonial Box.

Make sure Custom Post Type: Testimonials is on in HighendHighend OptionsHighend Modules (see Modules). When it's off, this element doesn't appear under Add Element.
Add it
In WPBakery, click Add Element and pick Testimonial Slider from the Highend Shortcodes tab. Or use the shortcode. See Shortcode.
Settings
NormaltypeNormal shows a card with the author's photo, name, and company. Large shows a bigger plain quote with the author credited inline underneath; there's no photo.
countHow many testimonials to include. Leave empty to include all of them.
categoryLimit testimonials to one or more categories. Enter category slugs separated by commas. Leave empty for all categories.
slideshow_speedHow long each testimonial stays on screen, in milliseconds. Leave empty to use 5000.
animation_speedThe crossfade duration between testimonials, in milliseconds. Leave empty to use 350.
DateorderbyOptions: Date, Title, Random, Comment Count, Menu Order.
DescendingorderDescending or Ascending.
Shortcode
[testimonial_slider type="large" count="5" slideshow_speed="8000" orderby="rand" animation="helix"]