Adding VMWare tools and enabling copy/paste to a VM already running?

Hi:

I have an Ubuntu VM that is currently running and it seems non-trivial at this point to add VMWare tools and enable copy/paste between the host computer and the VM.

For copy/paste, I go to "preferences/input," and I definitely have everything checked in in terms of grabbing input.

For VMWare tools, I get this "The virtual machine needs to have a virtual CD/DVD device to install VMware Tools." I suppose this means I add a virtual CD/DVD from "settings" but I am not sure what I should be pointing to for an ISO image.

Anyone have any suggestions for me?

thanks,

Max