Line Types Dialog Box

Use the Options > Element Attributes > Line Types command to open this dialog box.
The next set of lines in the list is dotted/dashed lines; these are editable.
The rest of the lines in the list are symbol-type lines; these are also editable.
New: Click this button to create a new line type. In the resulting dialog box, choose one of the following options:
Rename: Click this button to rename the currently selected line type.
Note: The basic line types (Solid, Dashed, Dotted and Dense Dotted) cannot be deleted.
Each black flag represents the end of a dash in the line, the length of which can be edited either by dragging the flag in a horizontal direction, or by editing its value in the Dash edit fields. The little white flags represent the gap between each dash section, and can be edited similarly. The values in the numerical input boxes are given in the respective measurement standards defined in Options > Project Preferences > Working Units.
Choose Options > Element Attributes > Line Types.
Click New. From the Add New Line dialog box, select the Symbol option and click OK.
From the Line Types dialog box, click Paste line components under the graphic editing section.
Notes: Only Arcs, Lines and Hotspots may be used in the definition of symbolic lines. If the selection of components copied from the ARCHICAD window includes splines, fills, text or other elements, these will not be pasted into the Line Types dialog box. The bounding box of pasted graphics will be centered on the centerline of the Symbol line. If the Project Origin was located within the bounding box of the copied elements, it will be used for alignment.
If you wish to change a symbolic line after the original components have been deleted from the Floor Plan, select the line to be edited within the Line types dialog box, and press the Copy line components button. Then paste these components on the Floor Plan, where you can edit them.
Scale with plan (Model size): Use this option to ensure that the current Line type will be displayed at the same scale as the model on every output.
Note: Avoid editing a scaled line type if the project scale is different than that of the line type, as it will be distorted.
Scale-independent: Use this option to display, plot and print the current Line type definition at a fixed size, regardless of output scale.