The Control Your Line Thickness workaround is a hard one…
There is some sort of combination between the Section Cut Width in the Styles configuration in Sketchup and the Lineweight settings in the Layout Styles Tab.
It would be soon nice to handle line thickness directly in Sketchup without having to guess what the right settings are.
As an architect I work with 0,13mm, 0,18mm, 0,25mm, 0,35mm and 0,5mm.
If I could ‘attach’ a line thickness directly to a layer, a component, a group or an edge, this would save lots of time.
There is control but not the control I want to have as an architect.
I like my drawings to be very precise with line thickness, so important to make a drawing that people can actually read and understand. That’s all about Line Thickness.
If you like we can set up a Teamviewer meeting and we can talk about this further.
The width of edges is always 1 screen pixel. You can set the width of profiles (edges with only one connecting face visible, or edges with no connecting faces) and the width of section cuts, also with pixels.
In LayOut, you can then set what actual line width is used for edges,and the profile and section cut widths are multiples of this unit.
The standard grading for line widths in architectural drawings requires that a thicker line is always double the width of a thinner one. Thus, I usually set my profiles to width 2 and section cuts to width 4. So, when I bring it into LayOut, I can set the base width to 0.18 mm that gives me 0.35 for profiles and 0.7 for section cuts (roughly).
There is a way of controlling the lineweights, but depending on what you are trying to achieve may not be the best method. It can be clunky. Once you have a portal loaded into LO, change to a vector instead of a raster image. Then right click and choose explode. From here you enter the group (or ungroup as needed) and edit line weights from the shape style window. Depending on how deep into the groups you go will effect if you are controlling all the lines or individual lines.
However, be warned, my understanding of doing this un-links the image from the model, so if you change anything in the model, it will not update in LO.
This approach may work well with overlaying layers of the same model of different styles.
I’ve only done this for small fixes as a work around when I’ve been under a time crunch.