Rule events/actions for the Adobe Audience Manager extension are not yet available in Launch. If you have specific requests for an action please let us know what you'd like to see for your given use case(s).
Yes. Per documentation: "You can include a bundled JSON configuration file in your app package to replace or complement the configuration that was downloaded by using the Configure with Launch App ID approach."
Assuming that you are using 1 Launch property to setup both iOS/Android apps - to fork data by platform you'd need to change configuration client side to accomplish this. However, instead of splitting report suites - have you considered using Virtual Report Suites?