Create Multiple Traffic Comparison/portpercent widgets on the Frontpage

We currently have our Observium Instance configured with port groups for our different Providers, in each Data Centre. I'm trying to configure our front page with Traffic Comparison widgets to show the traffic in each data centre. I have gone through documentation and forums online but can't find a solution to this. I feel like there should be config that I can put in the 'widget_config' array for each widget to define the port groups.

Currently I just have one widget configured via the config.php file.