How does one assign a dashed line-type to a Solidworks drawing view that is derived from an imported body or model. I often import an IGES or Step file into a Solidworks model

that represents an existing building or as build situation. I may then tie some new piping design into that existing equipment model (which is the imported model). On my Solidworks

drawing I want my existing equipment (imported part of the model) to show up as dashed or hidden lines while the new pipe equipment will show up with solid lines to represent that it's new

and to clearly be visible in comparison to the light weight dashed lines in the views. How can I accomplish this ?