I have moved this post (and another of yours).
Please do not post everything in 'Archicad+' section.
Try to find an appropriate section of the forum to ask your questions.
Lines in 3D do not have a thickness based on the pen colour.
The only way I know to display thicker lines is to create a 3D Document and turn on the 'true line weight' option.
I do not know any way of creating a dashed or dotted line in 3D - as far as I know they are always solid.
It is possible in GDL, but that is really just a series of short solid lines with gaps in between.
Barry.
One of the forum moderators.
Versions 6.5 to 27
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