This documentation is not using the current rendering mechanism and will be deleted by December 31st, 2020. The extension maintainer should switch to the new system. Details on how to use the rendering mechanism can be found here.
If you like a randomized order of your slides, please setup this porperty by the plugin / flexform. See
- Plugin > Slick Slider > Usual Adjustments > Display slides in randomized order: [Enabled]