Why in particular do you want to leave Preps? I have been using it for some 20 years and love it. I use Preps 5.3.3 as a stand alone application to create plate size pdfs that get manually downloaded to the rip from my mac work station. In addition to a Press sheet slug mark, I use a plate slug mark that images on the plate below the sheet gripper edge, and on the sheet itself I have a text mark with $Template / $SigName that documents the template and sig that produced the plate in case a problem needs to be investigated.
Al