1. A method in a computer system for storing element chunks of elements in a storage area, comprising: storing at least one root storage in a storage area; storing a model directory in said at least one root storage; storing at least one model in said model directory storing a graphic element list and a control element list in said at least one model, said graphic element list having element chunks containing graphic elements and said control element list having element chunks containing control elements; assigning a preselected number of elements to each element chunk; and allocating each element to an element chunk in one of said control element list and said graphic element list.