* Can I find and add devices to the app manually?
Yes, you can manually add supported devices to the app manually. To do that, please launch the app, click on "File" tab on the menu bar, and select "Connect to a Device via IP Address" from the menu (For other apps, it might be "Add Devices" -> "Connect to Device via IP Address").
In the window appears, you first need to select the right protocol for the receiving device. For example, if you are casting media content to Chromecast, then please select "Chromecast & Google Cast Devices".
After that, please enter the IP address of that very device into the box, and then click "Add" button. If the IP address you entered is correct, the devices name should be on the device list of your app.