This window facilitates you to create names of various groups in your menu list. If you want to add such groups name e.g. Vegetables, Pulses, Milk etc which may be named according to your own need. For making such kinds of entries in menu list you require to enter name of your desired group and to press Save button.
In order to add new group and to delete just do double click on the name of existing group which has been given there in row form. AS you click on this row tab button comes up in enabled mode.