Im not sure if my issue is related to elements or field groups but I get no answer on that module...

I am using fieldgroup to make a node type tabbed, using horizontal tabs...
And have spend hours now trying to hide a field with drupals hide($content['field_name']);
Could not make it work until I tried dragging the field out of my horizontal tabs and to the top of all the other fields, and then it worked..... So I'm guessing this is related to fieldgroup or elements module

If I wanna hide the body i do hide($content['body']); But should the field naming scheme be different now that it is encapsulated in fieldsets?

Im also using this patch to make horizontal tabs