I believe that the Aether curves that I listed in the previous post and where to put them are the curves that the hex file comes with. They are named Aether1 thru Aether4. The only other possible options are to use either Xlights or Vixen to try and set the start channel or edit the HEX file directly to set the start channel for each unit. When you say "all the curves", I don't know what that means? Also, make sure that you set channels 1 thru 4 to the curve with the corrosponding number ..... channel 1 to curve 1, channel 2 to curve 2, ect. There is no need to set any of the channels above 4 because the Aether only has 4 channels, R G B W.
I'm not sure if it will work but to use Xlights or Vixen, go into the test function of the software and use channels 1 and 2 to set the address. Make sure that the dimming level range is 0 to 255 and not in percentage. Set the dimming level of channel 1 to the required start channel for the device and make sure that all other channels are set to 0. If the start channel is greater than 255, set channel 1 to 255 and set channel 2 to a dimming level that when added to 255, comes out to the desired start addess and as before, all other channels set to zero. Then start the test cycle running and treat the Aether the aame way as if you were using the config utility.