Wiz750sr manually CTS/RTS

Hello. I use wiz750sr-rs232 module and WizVsp. I use wizvsp to create virtual serial port and use this port in my program. Can I change rts/cts manually? When I try to change RTS value from terminal program it do not change on other side, it change CTS value of my virtual port, like RTS-CTS closed on virtual port. So can I manually change RTS/CTS value? If I can what modul settings and wizvsp settings I should use?

If you are using WIZVSP and the hardware flow control function, you need to control the CTS of the virtual COM port that sends/receives network data.

This setting can be checked in the ‘Signal lines’ tab. (based on the latest version of WIZVSP: v2.0.2)