Features: These trees are specific to the Cimatron E application and to the document you have opened. The upper tree, the Assembly Tree, shows the components and constraints. The lower tree, the Features Tree, shows the assembly operations and features that were created in the assembly environment. If Parting operations have been carried out, a Parting Tree appears and displays the structure of the parting process. Sets and M-View data are also available in this area. Many operations can be managed directly from the data trees.