I know the PMDG 737 is not equipped with an IRS, but I found this section in my panel.cfg today.//--------------------------------------------------------//[Window09] // PMDG_IRS_UNIT_PANEL//file=737NG_IRS_BACKGROUND.bmp //file_1024=737NG_IRS_BACKGROUND.bmp //size_mm=448,392//position=8//visible=0//Background_color=16,16,16 //ident=IRS_UNIT//gauge00=PMDG_737NG_IRS!PMDG_737NG_IRS, 0, 0, 448, 392anyone have an explanation?J. Sherrillhttp://www.precisionmanuals.com/images/forum/checkcapt.jpg

Probably a place holder from years ago. There's nothing that functions as an IRS.

Yes, I believe there was originally talk of adding a functioning IRS to the 737NG in an update. If I am not mistaken the I in the MZALFOTRI buttons was to be used to open up the IRS panel when it was implemented. In the end this didn't happen though as I guess focus shifted to the QoS, which is an awesome product btw :DJibran Quraishi