Shipping grouping

-- HikaShop version -- : 2.3.2
-- Joomla version -- : 3.3.3

With Hikashop's UPS shipping grouping feature, it appears that the whole order is grouped into one box if enabled. If disabled, each are shipped in separate boxes.

For example, if three 14-lbs items (8 in x 8 in x 8 in each) are ordered, a 42 lbs box is shipped. However, if the feature is off, then three 14-lbs boxes are shipped.

Is there any way to make it so that if those three items are ordered that two of them are shipped in a single box (28-lbs) and the other is shipped alone? If 4 are ordered, then they are shipped in two 28-lbs boxes?

Thanks Nicolas!