Virtual serial port data to test the labview code

Hi,

I am working on a project  in which I am required to do the following:

1. Continuously obtain data from a device over 9 pin serial port, parse them dynamically. I need to obtain data from 2 devices at the same time.
2. Display the data in a table and be able to dynamically update if a button is pressed on the device. 

I am working on labview from a couple of days. I am trying to learn as much as possible frm the resources on Ni website. By seeing the tutorials, forums I understood that I need to use VISA for obtaining data from serial port and should use State machine and Queue message handler. Upon seeing the project templates, I noticed that Continuous measurement and logging template is similar to what I need but I am not sure.

And also, Can I use any software to create virtual data without having a physical device connected to a serial port.

Any advice is well appreciated. Thank you.