The Devices section allows you to perform the following actions:
- Add a new device to the project.
- The Discover Device option allows you to discover connected physical or virtual devices and GTT will interact with the target device to obtain the device information available on the device.
- Display lists all the devices in a project.
- Provides options to remove the device from the project.

On the Device Designer tab, click on the (+) icon to add the device. This opens the Add Device dialog box.

On the Add Device, you can perform the following operations.
- The Add Device dialog box lists existing device templates available in GTT.
- You can add new device templates using any of the methods; Discover Device, Create Light Device, or Create Device File options.
- You can delete existing device templates if they are not used in a project.
- Custom Device is also listed in the Device template list as the first template. You can select a custom device and add it to the project like other templates.
GTT supports 1 custom device at a time as per the current design.
You can use any of the options to add a device template to the project.
- Discover Device: Click on Discover Device, if you have the preconfigured device template available and connected to the physical or virtual device.
- Create Light Device: Click on Create Light Device, if you want to create a new template.
- Create Device File: Click on the Device file, if you want to create a device file.