Line Thickness

I use draftsight for architectural drawings - I'm forever having to print out same piece of work because i haven't drawn correct line thickness. Is there a way of setting Draftsight up so it draws the line the thickness it is going to be or at least view it before you print? Don't suppose ANYONE could share a drawing file with line type layers all named and setup to required thickness. Interesting to see how everybody sets out they're drawings/layers

Thanks in advance