Hello. Why intellij doesn't support smart auto com...

# intellij

[Denis Sazonov]

Hello. Why intellij doesn't support smart auto completion for constructor properties? Is there something I could set in settings?
class A(
private val a:A -> when I use Ctrl+Shift+Enter here it formats the line, jumps to the another, but misses the trailing comma, so every time I have to return and put it manually
private val b:B
)