[PLOT] Scale lineweight

[kgrodecki]

Hi,
I have been looking for solution so long and I decided to post about it.

I want to plot a huge pdf [5x5m] but then my lines are too thick. Also noticed that 'Scale lineweights' does not work in this case.
At least i found solution but it is not so effective. I can use .ctb and change lineweight for each color, unfortunately I have to change all 255 colors to achive my purpose. [changing layer's color 'by layer' also does not help. I have 100 layers with object color].
Is there any way to do it faster? or just set scale for lineweight for all line in the plot.

Thanks for any help,
Kris

Edit: I have Civil2013