After you complete the setup process within the Apple Home app, you can control your device with Siri when your iOS device is connected to the same home Wi-Fi. Learn more at this link.

Please note that the Apple Home app cannot control your HomeKit device remotely unless you set up a Home Hub in your home. Apple requires a Home Hub to enable remote control. Learn more at this link.

You can share control of your home with your family by inviting them(HomeKit hub required). Learn more at this link.

You can add a Scene by tapping the + icon at the top right of the Home app. For adding Automation(HomeKit hub required), find it on the bottom menu bar. It can group your smart devices and make them perform automatically. Learn more at this link.