Hi,
The buttons have link fields in which you can insert the necessary URLs to either navigate to a different site section or jump in-page to a specific location.
The latter are what’s called anchor links and have a specific procedure of setting up:
https://www.w3docs.com/snippets/html/how-to-create-an-anchor-link-to-jump-to-a-specific-part-of-a-page.html
To use anchor links on the landing page you’ll need to know the theme’s existing section IDs:
#lp-blocks1
#lp-blocks2
#lp-boxes-1
#lp-boxes-2
#lp-boxes-3
#lp-text-zero
#lp-text-one
#lp-text-two
#lp-text-three
#lp-text-four
#lp-text-five
#lp-text-six
#lp-portfolio
#lp-testimonials
#lp-page or #lp-posts
or add your own IDs in the desired content locations.