What you can do now is download the sample code that’s generated. The way to do this is to download the ZIP file with the button at the bottom of the code file list:
After you unzip the files to a local folder, you should be able to open the “Firmware.ino” file in the Arduino IDE. Have you downloaded and installed that yet? Do you want a guide to transferring the code to the Arduino or have you managed that already? Sorry if that’s insulting, I only ask because you said you’re an absolute beginner.