Controlling curling / overriding temperatures

[joelgraff 0]

I'm running into issues with curling on an ABS print.  The piece I'm printing curves down it's length, with pronounced curling at one end.

 

To this point, I've manged to improve the print with a hacked-together enclosure of light insulation, and I'm using a PEI surface, but my next thought was to try increasing the bed temp by 10 deg C.

 

I'm using ABS from MatterHackers - I can't seem to find a CUra profile for it, but the VIllage ABS setting seems to work well enough, though the extruder temp may be 5 deg C higher than recommended for MatterHackers ABS.

In any case, at very least, I'd like to figure out how to override just the bed temperature for an existing material.  I tried duplicating the material, but duplication doesn't really work.  I'm not sure why, but I suspect it's because the profiles aren't duplicated as well.  Is there an easier way to override one single setting?