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A support defines a point at which structural members, truss items or other elements of the structural system are restrained.

Overview of the adjustable support constraints (degrees of freedom):
| Constraint | Description |
|---|---|
| Fixed | The degree of freedom is rigid, non-displaceable, immovable |
| Free | The degree of freedom is loose, displaceable, movable |
Defines the displacement along the global X-axis.
Defines the displacement along the global Y-axis.
Defines the displacement along the global Z-axis.
Defines the rotation around the global X-axis.
Defines the rotation around the global Y-axis.
Defines the rotation around the global Z-axis.