is it possible to align to the center? - everything is on the left :(

On this image you can see how I have set up my taskbar and true launch bar, but everything is aligned to the left in my taskbar, is it possible to have it all in the center? or maybe even better to have some aligned to the left and some to the center? for example I'd like my clock to be aligned in the center and the free space aligned in the left.