DVA - enable SSL

I'm wanting to setup GroupWise Web and so I am finally getting around to enabling SSL on my GroupWise system.  (GroupWise 18.2.1)  The hold-up is the DVA.  The docs are lacking.  I do see in GW Admin > System > Document Viewer Agent where I can enable SSL for each of my DVAs.  But there is nothing in there where I can specify the certificates.  And just enabling SSL does nothing.  Anyone want to share how they did it?  Thanks!