Hi @Bukola
Can you please explain more about point 3? Where is that tab located? If possible making a screenshot would probably explain it much better.
Point 4 - can you check if you have core setting set to ON
app.view.email.reply.includeOriginalMessageText
If it's set to ON, then when you reply to the email you should find "See replied content" button (it's automatically quoting). See screenshot below.
When it is set to OFF, you need to click on the quote message button to add it.
Thank you,
Miro