how to launch the homepage slider?

First of all thank u for ur hardwork in creating dazzling and in advance thank u if u can give me an answer on this simple problem: i want to setup the featured slider for homepage, but looking in the menu as described in the theme documentation (point 5) nothing appears in the slider category, no scrolling menu, no choice offered.
How must I proceed for putting in several featured images ?
Precisions: apologize for my poor english andtotal ignorance of code
Best regards
Michel, Paris (France)
personal website in construction:

Hello there,

I hope you are doing well today.

In order to use the slider please go to Appearance > Customize > Dazzling Options > Slider and enable the slider then select the post category that the slider should use and it will use the featured image from those posts to populate the slider.

Best Regards,