Hi Tom,
Unfortunately, up to now, it is not possible to modify the settings directly running the RT engine. The only solution is to reboot in windows, and save with the file(configureIMAQRT).
Another solution could be to use the same card in your computer (a pci one) and in your PXI chassis.You could then set up the various parameters in MAX locally (development machine), and then execute the configureIMAQRT tool. And then finally, ftp this file to the RT controler. This is just an IDEA... I never tried this, so I'm not 100% sure it will work.
(I'll try to check later,when our PXI chassis will be back ;o) ) >>> but that's not a cheap solution :o(
Cheers,
Matthieu Dekeyser