customise contact categories

I am looking to customise the contact categories into something more useful Business, Family, Friends, Leisure, Research, Clients etc.

any ideas ?

you can customize (Add, Edit, Remove, …) your categories by menu Tools->Categories. Then you are free to categorize any of your contacts when you edit them (General tab). If you have some questions, don’ t hesitate to ask.

I have tried to customize categories with limited success, I have added a couple and removed a couple others cannot be removed and other I have tried to edit revert back to old settings. Also when I open contacts ans try to change their categories it only seams to add you cannot remove previous???