that's not working for me. when I set that and save the field is blank again

Thought I would share this. I have found a way to get a centered dock
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I have LBC docked to the bottom of my screen and I have my  task bar set to auto hide.
The way I was able to center the icons on my dock was by adding blank command nodes before my first icon. I keep adding extra blank command nodes until my dock icons are centered. One problem some might have is the fact if you hover over those areas where the blank command node is  it will highlight the area breaking the illusion that it is centered.
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a screenshot of how I have the blank command nodes setup.

and two shots of my desktop one with my task bar active and one when its not.
LBC and  windows task bar seem to have problems with each other every now and then, resulting in the task bar not auto hiding. in this case you just right click the task bar and go to properties. Usually just doing that fixes it and I cancel out of the properties menu.
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I've integrated my start menu within my clock area thanks to a small app called LClock
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and my desktop without the task bar active