Featured Post Slider dosn't work

@lorenza: Sorry this is not our theme. We only support theme by our own Theme Shop “Catch Themes”

@marcella: You can change the color code as per your need and then add the following CSS in “Appearance => Theme Options => Custom CSS” box.
#main-slider .entry-title span { color: #222; }

I see that you are using Catch Everest Pro version. In this case, yes you can use page slider instead of Post slider. See the theme instruction page for more details http://catchthemes.com/theme-instructions/catch-everest-pro/

You can build custom menu from “Appearance => Menus” and can add custom links to menu. So, it can be any link.

@phillipb007: Exclude from homepage will just exclude slider post from homepage. You can either just hide it with custom css or build child theme and change the code in your child theme functions.php file. Can you send me your site URL?