Call action buttons

in the site
In home page I have a service section, and in the main menu I have a menu item “servizi” that loads a page (servizi) with sydney service widget
I’d like to have the callaction button that scroll the page, just in home page
if I don’t set any url in the page “servizi” (widget) I can’t see the button in home.
if I set a different url both page show the same home button

how can I do to have the button just in home or a different unl for each situation?