This article will show you how to add or remove apps on the macOS dock. The dock is the toolbar on the screen that contains icons to open various apps on your computer.How to add an icon to your Dock1. Open the application you want to add to your dock. 2. The app icon will appear on the dock. Hold the control key and select the icon. A menu will appear - bring the cursor to Options and then select Keep in Dock. 3. Now when you close the app, the icon will remain there for quick access. How to remove an icon from your dock1. Hold down Control on your keyboard and choose icon you want to remove. 2. Bring the cursor to Options and then select Remove from Dock. If the app is currently open, it will show Keep in Dock instead. Make sure it is unchecked in that case. if not, uncheck it. 3. Now the icon will disappear from the dock when the application is closed.