Is there a field in Run/Debug Configurations for passing through program arguments? Trying to setup multiple run configurations that pass different program arguments to a Kotlin Native binary.

That one ?

I'm referring to the Gradle Run Configuration.

Gradle Run for JVM uses the gradle application plugin -- not sure about native. For JVM the Program arguments are the arguments to Gradle not to your program. In V5.something gradle the run command was augmented to accept a "--args=" parameter which passes through to your app. You could try to see if this works by first trying on command line then in dialog --args="my program args"