flatten assembly sheet metal body

hello everyone , how are you? , i hope you all are fine.

i have a little question about sheet metal in solid works

first of all i am using solidworks 2017 premium, and drawing sheet metal parts then i use assembly feature to assemble them into whole body.

After finishing my work i am  using  flatten sheet metal for every part and converting them to DXF  for my laser machine here is a question!

some assemblies consist of over 30 parts and i have to convert every parts individually to DXF, Is there a method to convert whole parts to DXF with one click instead of converting each part individually?!

thanks every one for helping

SolidworksAssemblies