I'm trying to customize our ZFD7sp1ir3a imaging CD with a custom menu. I've found the correlation between en.tr and the "labels" in the isolinux.cfg file, but my question is, can I start fresh and create my own labels, then use other syslinux menu commands to customize the menu?

I've been using this guide as a reference:
Doc/menu - Syslinux Wiki

So far I've had no luck with MENU LABEL, MENU INDENT, or MENU SEPARATOR. I'm not trying to do anything too fancy, just clean things up a bit. Does the zenworks boot cd support those other commands or am I totally off track?