You can put the file path and file name in a variable and use it with Save Records as PDF to generate your PDF's of each layout.
You'll need to also manage the records present for each save as PDF for each layout as well. You might need a script like this:
Go To Layout [//select first layout]
//use Perform find or other steps to find the records you want to include in the PDF
Sort [no dialog ; restore]
Set variable[$path ; //see above link for details ]
Save Records as PDF [//specify PDF options you want for your PDF here]Z
Go To layout [//select next layout]
//find records you want for this layout
// and so on for each layout
Thanks Phil, Beauty!