"Hidden" function Mozilla Thunderbird - "put the sent letter to the original"

Introduction

I, like many of you, use the Mozilla Thunderbird mail client for work mail. Something he is good, something bad. Much has been written about this — I am not talking about that.
I always lacked one useful feature that was not implemented by additions.

Desired

I missed two things in TB:

1. More convenient mail sorting
Due to the fact that the mail is working - in your account there are about 15-20 folders packed in a hierarchy in which the letters lie. In many cases, incoming letters get there through the filters, but in even larger ones - I shift them myself.
In TB there is a convenient type of letters - in the form of discussions, which are very helpful. But they have one minus - the sent letters have to be shifted to the right place manually every time so that the discussion is complete. Or, at least, so that you can hang filters on them (on sent letters).
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2. “Reply all” instead of “Reply” by default.
For escalation or control, communicating with someone, in the case of important letters, it is useful to put in a copy his manager or, say, the project manager when communicating with developers. With the answers it is important not to lose all these recipients.
However, when you click "Answer" (which is the default action when you reply), only "From" is inserted into the letter, and the recipients from "Cc" do not fall. This is cured by using the "Answer All" button, but the inconvenient "Answer one and lose all others" hangs on the hot key. Change hotkeys - either.

Decision

UPD: vasichkin Offered the human way of the same. All the advantages in karma - him, cons (if you will) - me.

The solution was found by chance. Today I went to about: config (all available application settings) in the search for “make answer all default”. Stumbled upon the boolean option "mail.identity.default.fcc_reply_follows_parent". I understood the name as "By default, put the answers and forwarded letters to the original one." Checked - really so - Oh, miracle! Both options worked as it should. Now Thunderbird suits me 100%.

Further for those who may not know how to configure.

Go to Tools / Options / Advanced tab. We are looking for the "Settings Editor" button.

When you first appeal can warn in the style of "you can break everything, are you sure?", Agree to accept responsibility.
We fall into the sanctuary of Thunderbird - all settings are in full view. In the search bar, enter "mail.identity.default.fcc_reply_follows_parent" (I personally found it by typing "reply", and reviewing all the options). By default, it will be false and not greasy. We double click - it becomes bold and true - magic is activated.

The operation is over, now our Thunderbird is one step closer to the ideal.

Dicklamer

The text is written specifically for Habr.
The option is found by me personally, not mentioned on the Internet. I will be glad if you find this useful, and you will share it among the Internet audience.

Ps The first post, like habrakat not forgotten :)

Upd. Function 2 - answer all at once - my mistake, this is not included.
But the hotkey “Answer all” was found - Ctrl + Shift + R.
If it were not for catlion , I would not check and would not nullify that I lied.