 add a new group field groups are used to visually gather several fields that are associated by some sort of logic for instance several text fields that hold the different parts of an address on input forms and displayed content the corresponding fields are enclosed inside an html fieldset at the bottom of the manage fields page for a content type you ll find this in order to add a new group to a content type you need to provide the following information  label  a humanreadable name for the group it will be used in input forms and on displayed content all characters are allowed including spaces accentuated or noneuropean characters group name a machinereadable name for the group it is used internally to identify the group when doing custom theming it is this identifier that you ll use to refer to that group important  the group name cannot be changed once the group has been created allowed characters az unaccentuated 09 and the underscore the length of the group name cannot exceed 32 characters including the group prefix that gets added automatically that is 26 free characters once a group has been created you can define what fields it will enclose by rearranging fields and groups   