Thanks everyone for their help. Fast response! This seems to have worked for static graphs, however the Network Engineers want to be able to select time frames for these graphs. I know how to specify that on the graph URL however it seems that doing things via this Custom HTML doesn't allow access...

Is there any way to change the order of the columns? I notice that you can change them by drag and drop, but the next time you open the custom property editor the defaults (order in which added) are again applied.