First you need to upgrade to the GNPublisher PRO and then follow the steps below.
Step 1: Once you install the plugin you will find this option in the WordPress Dashboard -> Setting -> GN Publisher
Step 2: then click Feature -> Exclude Categories From Main Feed.
Select the categories which you what to exclude.
That’s it for this tutorial!
We hope it helped you. If you have any feedback or questions, then please share them in the comments section below.