How to automatically copy text from file to clipboard line by line?

Question

Clipboard

Is it possible to implement this: There is a text file in which there is 1 mail on 1 line, is it necessary that when you press 1 button on the keyboard, the mail is copied to the clipboard 1 piece in order?

Answer 1

If the mail client supports extensions (for example, Mozilla Thunderbird), then you can write this