pcf file from my main assembly

Hi,
how can I produce the PCF file of my main assembly piping project if I can export only the routing sub-assembly ?
How can I export to PCF, standard assembly valve that are out to the routing assembly ?
Fore example, on SW tutorial exist an assembly called \sample\tutorial\routing-pipes\Piping-Tubing.sldasm (need to be complete the tutorial).
You can see more sub-routing assembly.
Can I export the pcf file of my Piping-Tubing.sldasm ?
If I need to select each sub-routing assembly singularly to export, can I merge with a classic ctrl+V in the same pcf file ?
How can I export to pcf, files that are out the sub-routing assembly or files that are classic assembly ?SolidworksRouting