Hi Fredrik,
As you already found out: you can already change the initial state using the defaultHidden property. I've renamed that property to defaultCollapsed to make it more clear what it does.
Regarding collapsing the toolbar to the right of the screen: in version 1.2.2 I've added a collapseTo property to the toolbar. You can use it to set where the toolbar is collapsed (left or right of the screen).
Mark