Hey dean,u wanto set thickness of aline with script r what?if its with script?heres the script:
Set selection1 = DrawingDocument1.Selection
Selection1.Search "Name = Line.1" 'put the name of the line for which u want to change thickness'
Set vispropset1 = selection1.visproperties
vispropset1.setrealwidth 5,1
selection1.clear()
hope it works for u,
bye
Naveen