Setting up Atmel Studio 7 for Arduino Esplora

Hi,
I have recently bought an Arduino Esplora but have trouble setting Atmel Studio 7 up. At university, we used to get a main.c that looked like that:

#include <stdio.h>

#include <util/delay.h>
#include <avr/io.h>

int main(void) {

while(1)
{

}

return 0;
}

I have installed the following extension: Visual Micro Extension for Atmel Studio 7 (called Arduino IDE for Atmel Studio 7 in Extensions and Updates).
I have also configured the installation path of Arduino and have selected: Arduino 1.6/1.8 and Arduino Esplora.

Yet, this does not work. Whenever I try to compile a program, I get the following error: “Please select a connected tool and interface and try again.” The problem is that there is no tool to be selected. Configuration and Platform are greyed out and “Selected debugger/programmer” only shows “Custom Programming Tool” as an option.

Windows 10’s (64 bit) device manager lists Arduino Esplora as follows:
“Ports (COM & LPT)
Arduino Esplora (COM4)”