Subgroups in Navigation Pane

PConijn

According to the Dynamics documentation here, you can create subgroups in the Sections area of the navigation pane.

So I enthusiastically created the sample code below and published it.

actions
{
	area(Sections)
	{
		group(Setup)
		{
			Caption = 'Setup';
			Image = Setup;

			group(Dynamics) // This is the grouping level
			{
				Caption = 'Dynamics';
				Image = Documents;
									
				action(IncomingDocuments)
				{
					Caption = 'Incoming Documents';
					RunObject = Page "Incoming Documents";
					ApplicationArea = All;
				}
				action(SMTPEMailSetup)
				{
					Caption = 'SMTP E-mail Setup';
					RunObject = Page "SMTP Mail Setup";
					ApplicationArea = All;
				}
			}
		}
	}
}

To my surprise and disappointment, however, the grouping is not showing up in the navigation pane.



Strangely, when I customize the navigation pane, the group suddenly does show.




Is this a bug, a design or am I missing something?