Samba share login in secrets.yaml

I am using the Home Assistant Add-on for Samba share to access my files, but is it possible to save my username and password in my secrets.yaml file instead of in the plugin config, and how do I do that?

workgroup: WORKGROUP
username: my_username
password: my_password
interface: ''
  - 'fe80::/10'
  - ._*
  - .DS_Store
  - Thumbs.db
  - icon?
  - .Trashes

compatibility_mode: false

No, that’s not possible currently.