SSL-Certificate vanished after turning off www-ssl service

Dear forum,

i am very new to RouterOS, I recently bought a hAP ac and was strolling through the services and noticed that ftp, telnet and www were enabled, so for obvious reasons i disabled them, this caused the ssl certificate for www-ssl to vanish from the system. Is it possible to generate a certificate for the www-ssl service in RouterOS? Or will i need to set up openssl on a machine? I am aware of the possibility to just reset the device, but I would like to know if I can generate certificates on the device for the Router itself.

EDIT: I just realized that the device never actually had a certificate, my apologies. I would still love to know how I can generate a self signed certificate for the www-ssl service.

Thank you!

This ‘how to’ needs OpenSSL to sign, but it’s a good start for you: http://forum.mikrotik.com/t/how-to-self-sign-ssl-certificate-and-activate-https/83678/1