This image shows the Network page in the Compute Classic Service Console.
There are tabs on the top for Instances, Network (selected), Storage, Orchestration, and Images.

The SSH Public Keys drop-down menu is expanded, with items for Shared Network, Security Rules, Security Lists (surrounded by a red border), Security Applications, Security IP Lists, IP Reservations and IP Network.

There is a Summary area with metrics. There are buttons for Show: All and Add SSH Public Key.
The Security Lists grid is hidden by the menu. There are four rows in the grid.