Missing setting - sender name for the account

Dear team,
I have run into a situation that I wanted to change the name in specific account which is used when sending email - e.g. “MyName” a@b.com - I have entered it during the account setup, however later on I can’t find an option to change it. Am I just not looking in the right place or is this setting missing?..

Have a look at
Settings / account / Sending mail / Composition defaults (and/or Manage identities)


Thank You, that is exactly it. A little bit tricky to find - I expected it for some reason somewhere in the SMTP settings tbh as it is relevant to Sending.