Share Email Facebook Twitter LinkedIn Reference Planes Use the Reference Plane tool to draw reference planes to use as a guideline in your design. Reference planes are an integral part of family creation. Reference planes display in each plan view that you create for a model. Topics in this section Add a Reference Plane Use the Line tool or the Pick Line tool to draw a reference plane. Name Reference Planes Name each reference plane so you can assign it to be the current work plane. Hide the Reference Plane in the View Hide a selected reference plane or all reference planes in a view. Create Reference Plane Subcategories Assign a subcategory to a reference plane to control visibility and graphics settings. Video: Adding a Subcategory to a Reference Plane Adding subcategories to reference planes make them easier to use and easier to control their visibility in models. Reference Plane Properties Select a reference plane, and view or modify its properties on the Properties palette. Parent topic: Tools and Techniques Related Concepts Creating Loadable Families Related Information Datum Extents and Visibility