Hi thecedarsrc,
Just follow this theme instruction to set up the home page as in our demo site.
https://www.themehorse.com/theme-instruction/attitude/
You will be able to implement as in our demo site. If you want other than this then its need code customisation and you need to hire a developer.
1>–> You can’t add header image below horizontal nav. It need’s code customisation. So you need to hire a developer.
2>–> Which grey vertical bar are you talking? If you select the business template then there will not be any sidebar presence.
3>–> Go to dashboard -> appearance -> theme options -> advance options -> home slogan options (You will be able to add slogan from here)
4>–> To have this first of all you need to assign a business template from the home page. Go to pages -> home -> edit it, At the right side there is template and select the business page template. After this create a multiple pages you want to display in a circular box as in our demo. Under each page add title, description and featured image and click on publish. Do the same process for other too.
After creating all the pages go to the dashboard -> appearance -> widgets then add services widgets to business page sidebar. After adding select the page you want to display. Then it will display as in our demo.
5>–> This feature is not available so it needs code customisation and you need to hire a developer.
6>–> There is a footer sidebar inside dashboard -> appearance -> widgets, You just add the Custom menu widgets, Theme Horse: Custom Tag Cloud widgets and text widgets.
1 thing while code customisation first make a child theme and unhook the functions and only after this customise the code in your child theme. So that while updating to our new version you will be safe from lost of your customisation code.
Hope this may help you.
Thank you!