Answer
Yes! Simply locate and open the .slcp file (e.g. bt_ncp.slcp) in your NCP example project through the Simplicity Studio 5 project explorer view. Go to the software components section and search for the „gatt“ keyword. Install the Bluetooth GATT Configuration component which can be found under Bluetooth → GATT → Configuration with the following description: „Adds basic GATT Configuration to the project that can be customized with the GATT Configurator tool.“
Press the „Install“ button which will add the Bluetooth GATT Configuration tool to your project afterwards. Now you should be able to use the Bluetooth GATT configurator tool via the configuration tools section. Please note that by installing the Bluetooth GATT Configuration component additional files like the config/btconf/gatt_configuration.btconf, autogen/gatt_db.c and autogen/gatt_db.h will be automatically generated and linked to your NCP example project.
The Network Co-Processor (NCP) application runs the Bluetooth stack and provides access to it by exposing the Bluetooth API (BGAPI) via UART connection. This mode for examples makes it possible to run your application on an external MCU, host controller or PC.