Renaming part list names is done individually. When a part size is added to a parts list, a part size name is automatically generated. For example, 16 x 24 inch Egg-Shaped Culvert MCR_0.000000 ACMan_0.000000 ACHW_0.000000 ACDW_0.000000 Material_. This name is impractical for use in a label, so you should rename the part sizes using a convention such as <Size/Material/Shape>. An example is 72-inch RCP, in which RCP stands for reinforced concrete pipe. Another option is to create a label that includes the actual part size value and also displays a material description using an acronym that you standardize for your company.