Green/red ticks in library manager with rev control

In my past company we used SOS to manage our databases, and all the views in the library manager had a green/red tick beside them, dependent on whether they were checked in/out.

AT my current company, we are not using version control, but I'd like to be able to use these ticks to indicate some other property. How does Cadence know  to display them, and which color to use? Is there some kind of setting/file that enables this?

Thanks :)