# Easy Chart: Pen Focus & Axis Label

**URL:** <https://forum.inductiveautomation.com/t/easy-chart-pen-focus-axis-label/38399>\
**Category:** Ignition\
**Created:** [September 4, 2020, 1:48pm UTC](https://forum.inductiveautomation.com/t/easy-chart-pen-focus-axis-label/38399 "2020-09-04T13:48:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jtrimbleS](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@jtrimbleS](https://forum.inductiveautomation.com/u/jtrimbleS)\
**Post date:** [September 4, 2020, 1:48pm UTC](https://forum.inductiveautomation.com/t/easy-chart-pen-focus-axis-label/38399/1 "2020-09-04T13:48:53Z")

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I have created an Easy Chart to show historical trending on about 30 tags. I have two different subplots, one to show digital trends and one to show the analog trends. Does anybody know of a way I can have the operator put “focus” on a pen, and have the y-axis label update to the units of that pen’s tag? Basically, I want the operator to be able to look at multiple pens with different units (voltage,amps, hz, %, ect.) and be able to select one pen to focus on and have the y-axis update the label, range, ect. based on that pen’s properties.