# Why is it not possible to add/substract selection with Select Cells/Points through ?

**URL:** https://discourse.paraview.org/t/why-is-it-not-possible-to-add-substract-selection-with-select-cells-points-through/4718
**Category:** ParaView Support
**Created:** [June 30, 2020, 2:20pm UTC](https://discourse.paraview.org/t/why-is-it-not-possible-to-add-substract-selection-with-select-cells-points-through/4718 "2020-06-30T14:20:40Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Richard](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/r/f0a364/32.png) [@Richard](https://discourse.paraview.org/u/Richard)
#### Post date: [June 30, 2020, 2:20pm UTC](https://discourse.paraview.org/t/why-is-it-not-possible-to-add-substract-selection-with-select-cells-points-through/4718/1 "2020-06-30T14:20:40Z")

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It is expected behaviour or just a bug?

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### Author: ![utkarsh.ayachit](https://discourse.paraview.org/user_avatar/discourse.paraview.org/utkarsh.ayachit/32/39_2.png) [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)
#### Post date: [June 30, 2020, 11:25pm UTC](https://discourse.paraview.org/t/why-is-it-not-possible-to-add-substract-selection-with-select-cells-points-through/4718/2 "2020-06-30T23:25:27Z")

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It is an expected behavior. While the underlying components have been updated to support this use-case, updating the user facing components to support this is still a TODO.