Campus or location tag on a list

We have a number of campuses both locally and internationally, some of which have quite unique requirements in terms of their reading lists and how we manage them. It is currently quite tricky for us to be able to identify which campus a particular list is being used for.

Where faculties can span across multiple campuses, there is not a tidy way for us to be able to fit it into the hierarchy structure without either duplicating faculties or campuses.

It would be useful to be able to add a 'Location' or 'Campus' tag to a list, similar to the existing 'Time period' tag, with a customisable dropdown of options relevant to our institution. This would also need to be added into the list report templates to enable us to filter reports for lists on a specific campus.

This would already be a useful feature to have, but I think it will become increasingly essential for many universities who are opening new Transnational education campuses in the coming years.