Categories/Groups/Folders for "Other contacts"

In the People section, you have an option to add other contacts whom you have only read access to their calendar. I have a big list wit contacts in here which are sorted from when the are added.

It would be very nice to have categories or groups you can make and manually add them there.

For example:

Management

Mr A

Ms B

Front office

Mr C

Mrs X

Back office

Mr Z

Mrs Y