Board Thread:Support Requests - Getting Started/@comment-33576184-20180412101450/@comment-5811199-20180412111051

To not have the template in the category, wrap the category in includeonly tags: This will make anything using the template be in the category, but not the template.

There aren't categories for threads, but you can add a Topic (see the Edit Topics button at the very bottom of this thread, for example).