No. All Named Selections defined in Mechanical are written to the dlnamedselections.asc file. You cannot write a subset of them. DesignLife reads that file and creates internal Groups that can be used to segregate the FE model for downstream processing. dlnamedselections.asc is a text file. If it is large, it can take considerable time to read it and create the internal Groups. To reduce that time, you can: 1. edit the dlnamedselections.asc to only include the Named Selection(s) of interest within DesignLife, or 2. copy the Named Selection(s) of interest to another text file and direct DesignLife to read that file.