Is there a way to specify some action items to the top part of the Split Action Bar while the others go to the bottom? Or is it all or nothing, whereby all the action items
If this option is activated, Android has the option to split the action bar. Whether to split is decided by the system at runtime
You can define that the action bar should be automatically split by the system if not enough space is available you can activate this via the android:uiOptions="SplitActionBarWhenNarrow" parameter in the declaration of your application activity in the AndroidManifest.xml file.