When I'm composing mail I can do everything with keyboard shortcuts except attaching files, where I have to klick the Attach-Button. There should be a shortcut for that.

-->varada

It's possible to trigger File->Attach File, isn't it? (WFM, current CVS, Linux, navigating with by hitting Alt+F F)

I agree with Daniel Küstner, it would be good if, when the focus is on the attachment box (see bug 205666), pressing Space or Return or Alt-A (implementor's choice!) would bring up the Attach Files selector dialog.

I think a shortcut from the composer window to bring in the attachment window would help a lot, as most of other actions can be done by keyboard.

Sorry, should have been more explicit: a shortcut as CTRL+something.