Seperate 'SupportsPinning' for new emails, reply or forward
Pinning Task Panes (<SupportsPinning>) for emails in compose mode is a great feature. It would be great to enhance this by offering an option to seperate ComposeTypes (New, Reply, Forward) to use the function even more specifically.
Manifest definition:
<SupportsPinning>New</SupportsPinning>
<SupportsPinning>Forward</SupportsPinning>
<SupportsPinning>Reply</SupportsPinning>
on top of the current
<SupportsPinning>true</SupportsPinning>
