How to set up SSL for admin dashboard?

I've just installed Web Panel for the very first time - very straightforward, thanks!  I'm bothered that the admin dashboard is at http://my-server:2030/ - I'd like it to be https://my-server:2030/ instead.  Obviously I need to acquire and install an SSL certificate, but the only instructions I can find about that appear to relate to the hosted sites, not the dashboard itself.  Can someone please point a total noob in the right direction?  Thanks.

Okay, so now I feel quite foolish - I re-ran the installer (my first attempt had been on a virtual machine in case anything went wrong) and right at the end it says

go to CentOS WebPanel Admin GUI at http://SERVER_IP:2030/

http://aa.bb.cc.dd:2030
SSL: https://aa.bb.cc.dd:2031

right before it says

Press ENTER for server reboot!

The first installer paused for a while so I hit RETURN a few times to check whether the terminal was still alive.  It's obvious now that these keypresses were queued until the installer script got to the end, at which point the server rebooted immediately and cleared the screen before I saw this vital information!  Good job it was on a test machine.