How to make the Atto editor of Moodle always expanded

Be default the Atto HTML editor is collapsed. It would  be helpful if we can make it expanded so the users don't have to click the Show/Hide button all the time. And here is how:

Go to Site administration > Plugins > Text editors >Atto HTML editor >Atto toolbar settings, scroll to the Toolbar config box and remove the setting 'collapse = collapse'. Save the changes.