The Leader LV7600-SER26 Customized Layout Software Option is a user-installed option for the LV7600 or LV7600W Rasterizers. This option allows for various items, such as video signal waveforms, vector waveforms, and pictures of input signals to be laid out in any position in the user's preferred size. Four input signals are able to be displayed simultaneously, or one input signal is able to be displayed on multiple sections. The display assignment function allows for one SDI input signal of one to four input terminals to be allocated to A to D display channels. By allocating one SDI input signal to multiple display channels, monitoring video signals in multiple display formats is possible. It is not possible to monitor errors in the background of input channels not assigned to display channels.