Input used in logic 5000

Hi everyone. I'm trying to find a easy way to find out if a input has been used in 5000. I know in 500 I can click on inputs and change a tab to usage and see what has been use and what hasn't. Is there a easy way to do this in 5000? It's been a long time since I got to play with 5000

If you go into the tag organizer and right click on any tag, you can go to Cross Reference, this will show you everywhere it has been used. You can also click the Show: drop down where it normally says All Tags and click Unused, or configure your own filter.