Simulate variable number of symbol blocks

Hi,

I would like to simulate x number of symbol blocks without having to copy and paste these symbol blocks. For example, the schematic I have below represents  a single row of 2 pixels (each symbol block is a pixel). What I want to do is simulate 100 or more pixels. In addition, adjacent pixels should be driven by complimentary Data signal. 

How do I go about doing so? Any suggestions will be helpful. Thanks 

Regards,

KenKim