问题
I am developing an Outlook add-in for Outlook 365. When I'm in mail create window add-in is displayed in a nice vertical task pane on the right-hand side. Problem is that in email view mode the same add-in is displayed above mail context, in vertical window.
Can I use the same vertical task pane in email view mode?
来源：https://stackoverflow.com/questions/35745672/office-365-outlook-add-in-can-i-show-task-pane-in-mail-view-mode