When you copy a part to a new part, you can reduce all the feature and parameter information to a simple definition. If you reduce the feature list, Abaqus/CAE will regenerate the part faster if you subsequently modify it; however, you will no longer be able to modify any parameters of the part. You copy a part by selecting PartCopypart name from the main menu bar.
Simplifying a part's feature list is especially useful if you have spent a lot of time creating a part and have iterated many times over the design. For example, if you created a slot and redimensioned the slot before arriving at the final design, the original part contains features that define each variation of the slot. If you copy the part and simplify the feature list, the new part will contain only one feature that defines the final version of the slot.