If the Configuration, Enable Features menu item is selected, a dialog like this will appear:

All the features in your software which are present but not enabled by your security key will be listed.
IMPORTANT
Your security key must be attached
for this dialog to display valid information.
Below the table is the serial number of your security key. If no number is shown then you have an old style, non-field programmable key and optional features must be enabled by key exchange. Contact your supplier in this situation.