thanks for forwarding this. attached you will find a concept illustration of how the menus could look like (if this is what you asked for).
I suggest there is a separate menu for defining the line styles.
then those line style are being assigned to the geometry by material.
you can either apply the global settings to a material or chose one style.
i forgot to add an option for outlines on/off in each material.
maybe you dont even need a global setting, since it is being set individually.
you should not set up the style for each material individually, because you might have multiple materials with the same style.
and this would make copying very difficult.
in sketchup the styles can be easily assigned in the materials menu.
in revit you could either add a material menu or assign it - just like the grass - by name (LR = linerendering).
Stucco White LR01
Marble Grey LR02
Wood Oak LR03
or you go with the tags/keyword. in revit you can assign tags/keywords to the rendering material. so the user could add: LR01 / LR02
Hope this helps.