ssl for cpanel/whm for a virtual host

[GuiPos]

sorry for this newbie question

as a reseller i got also the whm-panel.
now my question: can i install a ssl certificate for cpanel and whm
so that my clients see not the certificate from the whole server only they should see the certificate from me ?

i try to setup it like some thread in this forum describe but the server dont give me a crt.file back

( how i get this crt file ? )

now the see the whole servername if they login in the cpanel via:
https://clientsdomain.com:2083

thanks in advance for the help

cPanel.net Support Ticket Number:

cPanel.net Support Ticket Number: