Changing the 'Reply To' address and Importing

I need to change from TB 3.0. Two questions.

  1. Anyway to import mail from Thunderbird?
  2. When sending, is there anyway to change the “Reply To” email address from the sending account. I want some replies to go to someone other than me. That is, an account that is not in eM Client.

Must not be!! Did you ever get an answer - I’d like to do the same.
Johnkimble1939@gmail.com

I was able to import from Tbird. I did not find that I could change the ‘Reply To’.