Fieldgroup gives the opportunity to group the CCK fields of a content type.
Meanwhile, hook_content_extra_fields allows other modules to add non-CCK fields to a content type, that indeed show up in the Content Type Fields list. There, it is possible to change the weight of the non-CCK fields, and move them through the other fields.

Unfortunately, although weight changing is possible in the Content Type Fields list, these extra (or non-cck) fields cannot be grouped within Fieldgroups. They appear in gray color and refuse to be included the CCK fieldgroups.

I am not aware of the reasons for this behaviour, but I have to say I would appreciate the possibility to move some of the extra-fields into existing fieldgroups. There is always the possibility to do that through the template, but that's bypassing the nice admin gui.

Comments

radiobuzzer’s picture

radiobuzzer commented

I have found this http://drupal.org/node/354849 which discusses the issue

karens’s picture

karens commented
Status: Active » Closed (works as designed)

Sorry, this is a non-trivial change that won't get into CCK this late in the Drupal 6 cycle. With very few exceptions, there will be no new features in the D6 version.

Those are not CCK fields and fieldgroups are designed to hold CCK fields. We created a way to control the weight of those elements for convenience, but finding additional ways to treat them as though they were regular CCK fields is just not going to happen.

I someone who has sufficient knowledge of CCK to do their own coding really wants something like this, they could create a module to do it, but it isn't something that will be added to the core CCK code.