pack of combinations

[chiodo]

Sorry for bad english:

i need a module or a feature that can create Packs of combination. Now in prestashop can only create combinations and pack of "pure" article.. I need to create a Pack of Combinations.

Example:

I have:
1 pearl
1 ring

Now with prestashop i can create:


Combinations:

1 pearl black 2mm
1 pearl black 3mm
1 pearl blue 2mm
1 pearl blue 3mm
1 ring red 4cm
1 ring blu 4,2cm


Packs:

2 rings, 1 pearl

but i can't create pack of combinations

i need the features to create a pack of combinations:

1 pearl black 2mm
1 ring red 4cm





i hope i explaned succesfully my problem

Thanks a lot

Paolo