Accumulation of done tasks in Obisidan-Tracker lines

What I’m trying to do

I was trying to use Obsidian Tracker to build a similar task accumulator as I found here:

I can’t use that option because it’s relying on the Tasks plugin adding a checkmark emoji and a date, which is throwing off some of my other tracking.

But when I track a task.done within Obisidan-Tracker it just counts as one, so my line graph is just going to be a straight line!

Is there a way to increase the count for each accomplished task?

Something like:

taskAdding += searchTarget: Creative

Things I have tried

I’ve tried tweaking the javascript of that linked solution, but no joy yet!