On YAHOO...how do I change my name? Like when I send an email, only my first name comes up..?

How do I change it so that I can have my first and last name?..Thanks!

On YAHOO...how do I change my name? Like when I send an email, only my first name comes up..?
Login to your account and look for the Options link. Click on General Preferences and you will see where your name is located. Type in whatever you want.
Reply:step 1-go to "my profile"


step 2-go to "edit my profile"


step 3- scroll down till you see were your user name is


step 4- change it


step 5- enjoy
Reply:set up an new account then put your name way you want it then