In "Script Parameter" field, type dollar sign ($) and wait for a moment for a popup with available arguments to show. You can then pick one from the list or just type in e.g
If you want to pass more than one argument, separate them with comma - e.g
To capture the arguments in script, you will need to use SCRIPT_ARGUMENT variable - e.g:
args = split(SCRIPT_ARGUMENT)
and then use them as needed, eg.
To print them out:
To write to a file:
buff = args,args
fname = "test.txt"