IPDS card starts counting with IPDS 0=physical drawer 1, 1 = physical drawer 2 , 2 = physical drawer 3. You can use IPDS controls at printer level. if you OVRPRTF to drawer 3 and set IPDS for IPDS 2 for drawer 3 it should work ok. The default settings for were allset that way. if you have the printer drawers set to the same paper type and size and a drawer goes to empty the Lexmarks pulls from the next drawer with the same configuration so be aware if youhave different forms in each drawer. We use different forms in each drawer on several printers so I use a customized name for each form /drawer combination to prevent problems. Takes a little up front work but that way I can look at a printer off site and know what is supposed to be in each drawer because letter/white doesn't indicate "invoice with an overlay" in my mind especially when it really means "letter/white" on some printers. iuf using multiple printers set up the same way some of the newer models allow you to copy a configuration from another printer and this helps a lot. We also use wrkrpyle to answer load form types on the printers with multiple forms. Hope this helps a little.
Have you take a look at the settings of the IPDS card? Probably it has an option to assign drawers. This way you can assign logical drawers to physical drawers at printer hardware level instead of changing this at a software level.