Create a new page and select page template as “One Page Template” and Choose Menu.
In Choose menu dropdown, You can view “Header Menu,Left menu,Right menu” , select any one of the menu. For ex: In our theme, we have used “Header menu” as multi-page concept so we have selected “Left Menu”
Go to Dashboard / Appearance / Menus and select “Left Menu”
i) Add menus using “Custom link” and add URL as like “#slider,#about etc” because using “ID” you have to navigate one section to another section in same page.
Add content to this page and select slider. for ex: You can copy shortcode from home page and paste it to here.
Update and view page.You can view menus which we have added from Dashboard / Appearance / Menu / Left Menu
Now you have to add “ID”. For that Edit page and select any one of row settings and add Row Id as #about
Inspect one page template page and find slider id then add it into “Home” menu.