Hi MilesGibson,
Here’s a demo that shows how to set two resources to each Scheduler event. Clicking on the radio buttons in the options area of the demo changes the order of the resources which determines the color of the events in the Scheduler. Resources are assigned to the events as key:value pairs, for example:

priorityId: 2,
employeeId: 2,

where the key represents the value of the resource and the value in the pair represents the id of the item from the resource dataSource property. Assigning resources to an event can also be done via the Window editor by double clicking on an event. You can read more about Scheduler Resources in the following dedicated topic.
Best Regards,
Smart HTML Elements Team