# CellPicker in ParaView Glance

**URL:** https://discourse.paraview.org/t/cellpicker-in-paraview-glance/11319
**Category:** Web Support
**Created:** [February 1, 2023, 11:02pm UTC](https://discourse.paraview.org/t/cellpicker-in-paraview-glance/11319 "2023-02-01T23:02:35Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![ezesiza](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ezesiza/32/10611_2.png) [@ezesiza](https://discourse.paraview.org/u/ezesiza)
#### Post date: [February 1, 2023, 11:02pm UTC](https://discourse.paraview.org/t/cellpicker-in-paraview-glance/11319/1 "2023-02-01T23:02:35Z")

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I am trying to add the cell picker functionality in my glance app. I tried doing this by extending the ViewProxy.js class. found here `\glance\node_modules\@kitware\vtk.js\Proxy\Core\ViewProxy.js`. Everything seems to work fine except the sphere do not show when the click event `onRightButtonPress` gets called. Perhaps I am doing it wrong or extending the wrong class. I have created a gist found here [Implement CellPicker in ParaviewGlance](https://gist.github.com/ezesiza/0de634cf70106ecd25cae4a604789ae2)