Keyboard shortcuts for BCC and CC

[rogeriodec]

In Gmail there is a very convenient keyboard shortcut when I want to insert a BCC or CC, even though I am typing text: Ctrl+Shift+B or Ctrl+Shift+C.
I have not found anything similar for Thunderbird, so I am required to always perform a series of steps with mouse or keyboard.
Any tips?

[DanRaisch]

There are no comparable shortcuts in Thunderbird but changing the "To:" to "CC:" or "BCC:" causes it to repeat that new selection until it is changed by the user. Entering all of the email addresses to be sent as "To:" first and then changing to the next desired send type (CC: or BCC:) will reduce the number of mouse clicks.

[rogeriodec]

Too bad there are no such shortcut keys. Today I am required to forward several emails, one by one, using BCC and CC, manually.
A shortcut would help a lot.