Q:

How can I view the subject of an email when replying in Yahoo Mail? 

I clicked reply and am typing an email, and it just shows the from and the to, but no subject.  How can I view the subject? 
(I'm on a slow laptop and have lots of tabs, and I’m not that keen on more with Yahoo Mail, so while I know I could open a new tab log in again if necessary and click inbox, I'd rather have a quicker way like choosing some option to view the subject while I continue to write the email in the browser; I'm wondering if there is such an option.) 

A:

While replying, click on the arrow on the left of the “To” field;

From the drop-down menu, click on Edit Subject;

The Subject field will appear below the “To” field.