JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. (Technology Preview) Horizontal 2D Constraint Used to constrain elements to the horizontal x-axis of the ACS triad. You can access this tool from the following: Ribbon: Drawing > Constraints > 2D Ribbon: Modeling > Constraints > 2D Toolbox: 2D Constraint Tools (Technology Preview) To Apply a Horizontal 2D Constraint Parent topic: Applying Constraints