COMSOL with Matlab: How to plot while solving??

Dear all:

I am going to use the COMSOL with Matlab and want to see the simulated result while solving. The COMSOL installation manual gives the approach like this:

"To display the plot in a COMSOL graphics window you need to run COMSOL with MATLAB using the graphics server. To do so, start COMSOL with MATLAB from a terminal window with the -graphics flag: comsol mphserver matlab -graphics"

I am confused about the approach that what is the terminal window. I imput the command into the Command Prompt in Win 10. But the system cannot recognise the command.

Are there any one having experience about plot while solving when using the COMSOL with Matlab?

Thank you so much.