Category page settings can be found in Dashboard -> Helpie Kb Wiki -> Helpie settings -> Category Page.
The Category page settings let you control how the categories of your Knowledgebase works and is arranged.
This option lets you choose the template for the categories. You can choose from left-sidebar, right-sidebar, both-side-sidebars, no-sidebar.
Select which registered sidebar you want to appear in these positions. Sidebar1 is for the single sidebar. Sidebar2 is for the 2nd sidebar when the template has two sidebars.
Show / Hide Search.
Category Page Slug:
You can change the Category page slug here if you want. By default the category page slug is heldesk_category.