The Apps page should open by default. If not, click the "Apps" tab in the navigation bar on the left and then click "All Apps". Browse for, and select, an app from the list. Apps are sorted alphabetically by name and can be searched for using the search bar at the top. Click the "Install" button next to the app. Note: if the button says "Installing" or "Installed", the app is currently being installed or is already installed respectively. Clicking this button again will attempt to reinstall the app, not remove it
Click the "Install" button again to confirm the installation. The app will automatically begin to download and install silently in the background