Problem with integrating Qsys system in Quartus with created Qsys PWM module

I have added an extra PIO for the green led and my top levels file is as follows:

module PWM_Module (CLOCK_50, KEY, LEDG[0]);

input CLOCK_50;

input [0:0] KEY;

output [0:0] LEDG;

embedded_system U0

( .clk_clk(CLOCK_50),

.reset_reset_n(KEY[0]),

.pwm_out_export(LEDG), // pwm_out.export

);

endmodule

I have imported the DE2_115.qsf file and the pin mappings should be fine. I could compile and program the hardware system to the board.

Now I have created the NIOS II project in Eclipse but can't find a way to get it working. In the tutorial using SOPC the following step is mentioned:

The SW Files tab lets you associate software files with the component, and specify their usage. This component example design provides both a header file that defines the registers and driver software for the Nios II processor

This tab wasn't available in Qsys, I tried to manually add these files to the created bsp project without succes.