Trouble displaying multiple series on a single Perspective Time Series Chart

I got it to work by using system.tag.queryTagHistory for each instance. But now I have a new problem -- each pen is getting its own y axis. For the life of me I can't find where I can get rid of these. I'd love just 1 static y axis for all scenarios...

image

Edit:

I think I got it figured out... Just had to bind my trends value to the series such that each line utilizes the same defined axis.

image

image

How do I get different colors from my colorScheme to apply to each unique pen? I have tried using empty values for the "columns" colors, as well as manually pushing values into the column colors through the "trends" binding. I can only get the pens to change color if I use no bindings here and just configure it manually. But I need something dynamic here.

This is what I tried: