Importing RSA Certificate & key

Hi,

 

I'm browsing SSL certificate list, and there are different types of Contents. I'm particularly in "RSA Certificate & key" since this is the method I'd like to import two of the newly received CA certificates.

 

The problem is I have no idea how. I can easily import certificate and key in separate entries, but this seems to clutter the list. I'm also having difficulties in finding a proper instruction on the web. Please help or direct me to one, that just assumes me being a F5 first-timer :) thanks