
Need send-as ALIAS, not setup Alias as a new acct.
Even and editable send-as as a short term solution. Optimal would be select aliases from a menu and perhaps a new add alias would be require which would inherit values from another acct.
Purpose of alias is I can terminate alias but not acct, want to expose alias so can terminate if getting excessive junk while still accepting others. If I can select say ME@email.com and get all server setting and then replace ME with ALIAS before sending out an email Manual would be better than nothing. If I happen to replace email.com with somewhere.com then that’s my undoing.
Most often I don't bother using an alas except where I know I may be exposed to SPAM...