You can hide an entry in two ways from your Dashboard. First, locate the entry and click the icon with three vertical dots opposite the name of the entry. Then, you can either:
1. Click “Remove”; or
2. Click “Edit”, which takes you to an editable copy of your entry. From there, you can click the settings icon on the top right, scroll down to the “Visibility” setting and click “Remove Entry”.
The entry will be hidden from your Mirror publication, but the data will still be stored on Arweave.