12d Model

Does that mean that if i want a DWT or .lin with all the linestyles i have in 12d (thousands, too many to count) i have to create a project with thousands of lines, one for each style, then export as said above, then rewrite thousands of linetypes using the exploded lines in Bricscad?

Hi All
I am simply trying to be able to see the linework and symbols displayed in Autocad/Bricscad exactly how I see them in 12d.
At the moment when I export dxf or dwg from 12d and open them in Autocad/Bricscad I loose the styles.
For example the Water line -----W-----W----- becomes just solid.
Is ...