Alter Aeon Online Help

Keywords are:  'accountsync settings'

Syntax:
set accountsync on
set accountsync off

This command allows you to have one set of common options for all characters
in your account.  To activate type 'set accountsync on', this will
save your current characters configuration.  Any subsequent characters you
log on will then have your preferences automatically applied and any
additional adjustments you make will automatically be saved and become your
new default when you logoff.

Currently this only applies to spam filters however more options maybe made
available in the future.

If you happen to have any Immortal level characters on your account they
will be excluded from being synced. Their configuration is often different
from mortals.