Provide rules to automatically run task pane and mail apps
Add rules to manifest to support application run automatically, e.g. task pane should automatically appear after user clicks New Items -> Appointment in Outlook. I realize that this might be inappropriate for apps in store, but it will be very helpful for corporate apps. We can save time to access corporate app for end user.
Martin Irle commented
We would also vote for an option to auto activate add-ins in compose mode.