In the Autodesk Simulation menu for some of the CAD systems for which a direct transfer exists, there is a command entitled Simplify Model. This command will allow you to suppress any feature in your CAD model that is not necessary for the FEA model.
Use feature suppression to remove small details from your model that will not affect the results of an analysis. These small details if left in the model may cause the mesh generators to not be able to create as good of a mesh as if they weren't there. This causes several unnecessary problems including: extra time to mesh around the features, possibly bad elements near the feature, and extra time to run the analysis.
Below is a series of figures showing when you may want to use feature suppression.
Showing text stamped on the part
Showing the Autodesk Simulation Feature Suppression window along with the part
The lettering object was suppressed.
After suppressing the unnecessary details, the Autodesk Simulation Feature Suppression dialog box can be closed and Start Simulation can be selected from the Autodesk Simulation pull-down menu to transfer the part without the suppressed features.