Hi,
Thank you for your post! There is no special testRunner argument to specify test case custom properties. But, there is an argument for project properties: -P which specifies a value of a project property for the test run. This value will override the variable’s value during the run.
Usage: -P<variable>=<value>. If the value includes spaces, enclose the entire argument in quotes. To override several variable values, specify the -P argument several times.
Command-Line Arguments: https://support.smartbear.com/readyapi/docs/soapui/running/automating/cli.html
