To edit reference line attributes
main topic     example     see also 

1    Double-click a reference line.

2    Click the Attributes tab.

3    Under Lines, choose one of the following:

·    Automatic to accept the default line type and color

·    Custom to pick your own line type and color

-    In Type, choose a line type.

-    In Color, choose a color.

-    In Size, choose a line thickness.

4    If you like, check Apply same attributes to all reference lines to apply your attribute changes to all similar items.

5    Click OK.