Reply on marked text only

I’d like a function “reply on marked text”.
Example: I did receive a mail with a lot of text in several cahpters. I’d like to answer e.g. on the 3rd chapter only. In other words I will mark this chapter, select the desired function and this chapter only will be copied into the reply.

It is not possible currently. The normal way is to reply to the whole mail, go to (below) the chapter you want to react, use Outdent (it is in toolbar above the text) and then write your reply.

Perhaps for one of the next upgrades?