The selections listed here are available for defining settings for the simulation, for example to define physics or mesh settings. Using selections can speed up the model setup as the entities only need to be selected once, when creating the selection in the Solid Edge file. The selections can then be used in multiple models that synchronize with the CAD file. Simulations containing parametric sweeps and optimization of geometric parameters can also become more robust as the LiveLink interface keeps track of the entities contained in a selection at the source, that is, in the CAD file.