Why the SCommonButton doesn't accept the Enter keyboard key?

Development Programming & Scripting
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1

I’m arranging the UI of my game project inspirating by the Lyra game demo source code by Epic.
I would like the UI buttons could be pressed the UI buttons by the Enter keyboard key.
In the experimental CommonUI plugin I noticed the SCommonButton slate widget doesn’t accept the Enter key:

FReply SCommonButton::OnKeyDown(const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent)
{
	if (InKeyEvent.GetKey() == EKeys::Enter)
	{
		return FReply::Unhandled();
	}
	return SButton::OnKeyDown(MyGeometry, InKeyEvent);
}

FReply SCommonButton::OnKeyUp(const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent)
{
	if (InKeyEvent.GetKey() == EKeys::Enter)
	{
		return FReply::Unhandled();
	}
	return SButton::OnKeyUp(MyGeometry, InKeyEvent);
}

I want not modify the CommonUI plugin source code and I would like to configure the accepted input by that button.
What is the reason that button doesn’t accpet the EKeys::Enter input?