When will the Feature for alias domains will be coming out? Ref .
@mrrobot47 you once told me It will take care of SSL for all domains. Simply adding a new alias domain will re-create the main SSL certificate of the site with that domain/subdomain appended.
Can you give us any update about that feature?
Otherwise I we can not use ee in a multisite setup 
Or: is there a command to install a own cert for that single subdom?
Thanks!

will check it out soon. Is it possible to update the ssl certificate in production or how is the recommended way from your pov?