See “IDE integration improvements” https://github.com/gradle/kotlin-dsl/releases/tag/v1.0-RC3 There is a gif with example of this behavior, but with enabled “auto import”

Also, see this task https://github.com/gradle/kotlin-dsl/issues/962 and this one, I created it and also pointed that would be good to have the same experience as with any other Kotlin module, instead reloading build class path manually or even with “auto import gradle changes” https://youtrack.jetbrains.com/issue/KT-25354#focus=streamItem-27-2947589-0-0