FileOpenDialog... how switch to Thumbnail view?

[aharown 0]

When I use FileOpenDialog, the dialog opens in what Windows calls "list" view. I want to change it to thumbnail view in my script.

Using AutoIt Window Info I can see the class name for the row of buttons that includes the view menu is ToolbarWindow32

But I haven't figured out how to get there and select the right menu option.... or is there a better way?

Advice?

(I'm using the latest ver. of AutoIt)