Initializing structure variables

Hello!
I have a structure:
    Public Structure geardrive
        Public name As String
        Public gearaxis As Integer
        Public axison As Boolean
        Public speed As Double
        Public target As Double
    End Structure
and I initialize:
        Dim planets() As geardrive

The help files say I can initialize the variables on the same line, like this:
        planets().name = {"Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune"}

but it give me an error under the parentheses: number of indeces is less than number of dimensions

and an error under the first bracket: Expression expected.

If I do it individually, it works: planets(0).name = "mercury"

What am I doing wrong in the same line version?  

Thanks,
Joy