As a checkpoint, you can enable/disable the 'Show unavailable Realtracks' option so they do not show if you do not have them.
..and even if left enabled to show them, they likely have a 'N/A' marking in one of the columns inside the picker.
There's actually a column labeled N/A.

For most of us (unfortunately) we can't check between Pro/Ultra as we already have the Ultra installed, so knowing what you have available compared to us isn't easy to do.
As mentioned above, a quick Chat session (upper right corner of this screen) is your best bet to find out.

I do not work here, but the benefits are still awesome
Make your sound your own!