[Theme Horse Support Team]

Hi info66,

View this below screenshot.
http://awesomescreenshot.com/01c4ld2u86

here you can select multiple category but this will effect only in home page. We have designed our theme this way. If you want other than it then it needs code customization and you need to hire a developer to fix it. Before making any changes in the theme first of all you need to create a child theme then only customize the code. So that your updated data will not be loss while upgrading to our new version.

Thank you!