You can configure company knowledge bases access permissions by clicking Knowledge base - Access Permissions - Add a new role.

If you often need to create workgroups or projects that have similar elements (tasks, members, settings, etc.), you don't have to create it from scratch. You can copy an already existing workgroup or project and create a new one based on the copied workgroup. This will save you a lot of time.

You can create nested menus in Bitrix24 Knowledge Base by creating a standard menu and dragging the menu items.

You can create a knowledge base in any workgroup or project.

Any company has its rules, instructions, FAQ, etc. that employees need to have access to. You can add all this information to a company knowledge base!