In the Model Tree, select the part instances that you want to exclude from the analysis. Click mouse button 3, and select Exclude from Simulation. Similarly, you can include part instances that were previously excluded by selecting Include in Simulation. Constraints on the part instances are retained if you exclude the instances from the analysis and subsequently include them. By default, part instances that are excluded from the analysis are colored dark gray in the viewport. Icons are displayed in the Model Tree to indicate the excluded status of part instances and to indicate the linked and excluded status of part instances if the part instances are also linked between models, as shown in Figure 1. | |||||||||