A disabled node does not take part in the evaluation of a sequence; see Figure 3-6. Some nodes, such as container nodes and default nodes in the physics interfaces (see Physics Interface Default Nodes), cannot be disabled (or deleted). When this is the case, the context menu does not have these options available. You can use Shift-click and Ctrl-click to select multiple nodes that you want to delete, disable, or enable.
• To disable selected nodes, right-click and select Disable () or press F3. The nodes are unavailable (dimmed) in the model tree to indicate that they are disabled. For a geometry or mesh sequence, the disabled node does not affect the finalized geometry or mesh.
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Instead of disabling and enabling variables and physics nodes to simulate different analysis cases (using different boundary conditions or sources, for example), use the selection of variables and physics interfaces in the study steps’ Physics and Variables Selection sections, or use load cases for solving cases with varying loads or constraints. See Physics and Variables Selection and Using Load Cases.