How to increase the number of icons in the unity launcher?

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http://askubuntu.com – I was wondering if it were possible to increase the number of icons that you could keep on the unity launcher bar. I have already decreased the size of the icons so that I can put more of them on there, but I was looking around to see if there were some hack or another that would allow columns of icons to appear instead of a single column. It doesn't have to be exactly this, but this is one idea that I've had that could solve the problem. I've already looked at Unity launcher full - Need more icons, but all the answers that were there just said to add more 3rd party launchers, which I do no (HowTos)