NIOS II 10.0 "add this software component"

Hi everyone.

I have 2 question about NIOS II file read/write, and download to pc.

1. I found below writing from altera forum to use fopen & fclose function.

associated system library -> system library properties -> software component -> add this software component check

but, Nios II BSP properties doesn't have "software component" option, so

I didn't find "add this software component" check box.

Where can I find that?

2. I want to get some data from FPGA Kit to my pc, "txt" file type.

I saw that the best easy way is to use JTAG Uart.

but, I have never used Jtag Uart..

Where can I find JTAG Uart instruction about NIOS II?

Thanks in advance.