# Toggle visible threshold values in charts

**URL:** <https://forum.inductiveautomation.com/t/toggle-visible-threshold-values-in-charts/2886>\
**Category:** Ignition\
**Created:** [April 21, 2011, 12:58pm UTC](https://forum.inductiveautomation.com/t/toggle-visible-threshold-values-in-charts/2886 "2011-04-21T12:58:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Duffanator](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/duffanator/32/3560_2.png) [@Duffanator](https://forum.inductiveautomation.com/u/Duffanator)\
**Post date:** [April 21, 2011, 12:58pm UTC](https://forum.inductiveautomation.com/t/toggle-visible-threshold-values-in-charts/2886/1 "2011-04-21T12:58:22Z")

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It would be nice if you could set threshold values for pens for alarms and such and then be able to toggle them on and off in the trend charts so you can see where it is in relation to where the threshold values are.

For example, we have a pump house that has 5 pumps and they are set to go on and off depending on the flow rate of the plant. If those setpoints could be overlaid onto the chart so you can see where the flow rate is compared to how many pumps should be running depending on the threshold setpoints. It would work good for standard alarm setpoints too.

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**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\
**Post date:** [April 29, 2011, 6:11pm UTC](https://forum.inductiveautomation.com/t/toggle-visible-threshold-values-in-charts/2886/2 "2011-04-29T18:11:59Z")

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This would be nice. I know it’s not quite what you described, but you can overlay setpoints by using a constant calculated pen.