Console increments are set to follow the increment table you set up before the auction. If you manually change the increment during the auction, the system will automatically alter it when you get to the next scheduled increment change.
You can, however, change increments manually on the console by typing a value in the Bid Increment box, or by double-clicking on the box and selecting an increment from the table that pops up. You cannot change your pre-loaded increment table once the live console is available.