Marketpress / framemarket product variations in product listings only

In marketpress, when set to product listing only, if there are products with multiple variations hence prices the price range / options do not show at the product detail level.

At the product summary, the prices are displayed as 'from' the first variation (although it woul dbe better to be from teh cheapest)

Can you direct me as to what changes and where, so I can display at the product detail the full range of variations
(as are available in a 'full' shop)