1. Enter characters.
2. Fix the edit (to avoid erroneous input while showing).
3. Adjust the font size (it is larger by default).
4. Rotate 180 degrees if necessary.
5. Show it to the other party.
6. Clear.
I think it's easier to use if you put a shortcut on your desktop.
There is no save function or read aloud function.
(There is also a "Notepad for writing conversation +" with an added function. Please consider it.)