OK, I see.
I think it would be interesting to add a option to some fields params, that would use multiple rows for clones. Example :
array(
'name'=> ' the name',
'id'=> "thefield",
'desc'=> "some description",
'type'=> 'text',
'clone_advanced' => true,
)
People that would use these parameter would certainly have the knowledge to use the appropriate function/query to retrieve the data, and would be aware that if they add custom fields with the same ID, the data would be grouped in the same field/clone area. I'm not sure but I think you have your own functions to retrieve the data. I suggest that you could write an additional function to get data form 'advanced clone fields'.
this would give a lot of power and flexibility to your great plugin. 🙂
),
