To Apply a Fix Constraint in the Content Editor (AutoCAD Mechanical Toolset)

In the Authoring Palettes window, in the Geometric tab, click Fix.
Select a point on an object.
Applying the Fix constraint to a point on the object locks the node in place. You can still move the object.

To Apply a Coincident Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Colinear Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Concentric Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Parallel Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Perpendicular Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Horizontal Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Vertical Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Tangent Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Smooth Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply a Symmetric Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply an Equal Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Apply Multiple Geometric Constraints to an Object in the Content Editor (AutoCAD Mechanical Toolset)
To Set the Order for Applying Multiple Geometric Constraints to an Object (AutoCAD Mechanical Toolset)
To Create a Horizontal Dimensional Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Create a Vertical Dimensional Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Create an Aligned Dimensional Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Create an Angular Dimensional Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Create a Radial Dimensional Constraint in the Content Editor (AutoCAD Mechanical Toolset)
To Create a Diameter Dimensional Constraint (AutoCAD Mechanical Toolset)
To Convert a Dynamic or Annotative Constraint to a Reference Constraint in the Content Editor
To Convert a Dynamic Constraint to an Annotational Constraint (AutoCAD Mechanical Toolset)
To Change the Dimension Name Format in the Content Editor (AutoCAD Mechanical Toolset)

Commands for Authoring, Publishing and Distributing Content Libraries (AutoCAD Mechanical Toolset)