You could use the HDMI inputs with panels that support daisy chaining to build a video wall and would need to make sure that the panels in total have the same aspect ratio as the DSCS9 output (portrait or landscape 1080p). This may result in a lesser quality as you would be stretching 1080 pixels over several times that size.
We do have a guide that can assist you with a Windows setup here: Creating a Video Wall with Xibo for Windows