# Easy chart pen names from tag tree

**URL:** <https://forum.inductiveautomation.com/t/easy-chart-pen-names-from-tag-tree/9115>\
**Category:** Ignition\
**Created:** [September 29, 2014, 6:31pm UTC](https://forum.inductiveautomation.com/t/easy-chart-pen-names-from-tag-tree/9115 "2014-09-29T18:31:30Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [June 20, 2018, 5:44pm UTC](https://forum.inductiveautomation.com/t/easy-chart-pen-names-from-tag-tree/9115/5 "2018-06-20T17:44:10Z")

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This was solved by offering the `onTagsDropped` extension function on the EasyChart. It allows you to do anything you want with a dropped tag. See this older topic:

> [@Documentation in Tag Browse Tree](http://forum.inductiveautomation.com/t/documentation-in-tag-browse-tree/9867):
>
> I am using the ‘tag browse tree’ object to allow dragging/dropping of tags onto an easychart, but the tree only displays the tagname, which is Greek to a customer. Is there a way to display the tag documentation (ie:description) in the tree instead, or even alongside the tagname would be great. I have a label object that shows the documentation of the selected tag in the tree, but a customer would still have to scroll through each tag, looking at the description until they find what they are loo…

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