Freelance starter template – How to Edit BG Slider

I’ve installed the Freelance starter template and plan to modify it, to create my first website with the Kadence theme. I really like the Home page design of this starter template, especially the use of a background slider. I have been trying to figure out how to get to background slider controls so that I can modify them, but have been totally unsuccessful.

I believe the background slider was created using the Advanced Gallery block, but I haven’t been able to figure out, for example:

(1) how or where the slider was set to the section background
(2) how to get to controls for individual images,
(3) time interval or delay between slides

etc.

Could you please explain, step-by-step, how to access & edit the Advanced Gallery controls in the Freelance starter template.

Also, in checking the Kadence Youtube channel, I noticed that currently, there is no tutorial on the Advanced Gallery. Would be very helpful if you could post a Youtube tutorial on the Advanced Gallery block, in the near future.

Thank you.