How do I block time on my calendar?

video1.0<iframe src="https://www.loom.com/embed/980f084561164604a47d4f2bff87a154" frameborder="0" width="2274" height="1705" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>17052274Loomhttps://www.loom.com17052274https://cdn.loom.com/sessions/thumbnails/980f084561164604a47d4f2bff87a154-287730a79d8fff72.gif79.466667How do I block time on my calendar?