[RCD] message menu button

I'm working on a new button in toolbar (mail.html and message.html templates). This will be a popup menu like markmenu, will contains container for plugins and three actions (for start):

• open message in new window
• show source (in new window)
• Download as .eml file

The button will be enabled in message view or in mailbox view when one message is selected. I'll remove current viewsource button. So, now I need your opinion about:

1. Should I add 'print' action to message menu, and remove print button

from toolbar? It's reasonable, print is a one-message-action (and we need more place for plugin buttons). 2. I've got no image for the button, any ideas?