Thank you Silverfox and johndd.
I guess my secondary question is:
In the People Workspace, Bookmarks provide a handy means of navigating to or finding people. However, some programs have an even quicker means of navigating to someone where you know that Person's ID number. Eg, if you know Joe Bloggs is number 99, typing number 99 in a search panel is even quicker than using Bookmarks. In FTM I cannot see any means of navigating straight to a required person simply by means of entering their assigned ID number. Is this correct?