Dual Y-Axis in Scatter Chart

Hello,

I'm currently modifying the Enhanced Scatter chart by Microsoft and I'd like to plot categorical data either on the primary Y-Axis or on a secondary Y-axis (which I am aware that I will have to add this feature). Currently, Dates are being plotted against ProjectID (these ProjectIDs are all mapped to the Actual Project name in another table) like so:

The result I am looking for would be something like either of the images shown below: 

I'd appreciate any help/advice to either be able to plot the data on the y-axis or if you know any helpful tips to add this feature to a custom visual.

Thanks for any help!