Add custom Run/Debug Configuration Macros Follow

Hi, I was wondering if Intellij supports the ability to specify custom macros for the run/debug configuration screen.  

1. Run -> Edit Configurations

In this example I have a TestNG test that we use as a system test against a live system (not unit test) but I need to specify the VM arguments.  When I click the + on the right side of VM options the macro screen pops up.  However, I'm not sure how to add to this list.  In eclipse there are string substitutions that I can use to save this data for me instead of having to paste it for each test/run configuration.

Thanks.