React Native Router Flux: navigate from main scene to child

I've found that you can switch to inner tabs if you navigate to the tabbar first, e.g.:

<Button onPress={() => {
    Actions.tabbar({type:ActionConst.RESET});
    Actions.courses();
}} title="See Courses" />

The first scene transition resets the scene to your tab bar, and would by default show your initial scene, the second transition then replaces your current scene due to how react-native-router-flux handles tab scene transitions.