This might be a dumb counter question... but, how do I test that? I'm not sure what feature that is?
shoot raw you get a *.crw file
shoot dng you get a *.dng file
in misc select dng visible in usb
connect your camera with usb and you see the *.dng file in camera window
in misc deselect dng visible in usb
you don't see the *.dng file in camera window anymore
Also, how similar is the code between the SD750 and the SD1000? Does Tv bracketing work as expected on the 1000? I looked at the button layouts and it seems similar
the code is similar to sd1000, tv bracketing works perfect
keymap different thats why your disp button = chdk menu button
i can make testbuild with display and menu button changed if you want to try?