Line weight for just certain lines?

I’m drawing a roof plan and need to emphasize certain lines with a thicker line weight. Whenever I adjust in styles, it changes all the lines. Is there a way around this?

You could group sections, and make sure Edge Style/Profiles is selected. Where two faces meet within a group the line will be thin, but when the edges of two groups meet you get a more pronounced profile line as well.

You can do as Colin suggests. You might also consider managing this in LayOut where the tags for different objects can be set to display with different line weights, dash styles and even color.

Thanks, guys! Dave, I didn’t know Layout would do that. I’ll go check it out.

You can do a lot of things with viewports in LayOut. Between adjustments to the tags and styles and perhaps stacked viewports, the variety is endless.