3 Dimensional Charts

Currently, it appears that Combination Charts can only be created when there are 2 or fewer dimensions on an axis (assuming line items are a dimension).  We need the ability to make charts with 3 dimensions (one nested).  For example, I want the "product"  dimension to show as stacked columns with actual amounts (line item), along with the Maximum Capacity (also a line item) for each product, AND I want to show all of this data across time. This can be done very easily in Excel but can't seem to be done in Anaplan.