# Activate Fill in mode

**URL:** <https://discourse.slicer.org/t/activate-fill-in-mode/41204>\
**Category:** Support\
**Created:** [January 22, 2025, 2:21am UTC](https://discourse.slicer.org/t/activate-fill-in-mode/41204 "2025-01-22T02:21:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mbol](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@mbol](https://discourse.slicer.org/u/mbol)\
**Post date:** [January 22, 2025, 2:21am UTC](https://discourse.slicer.org/t/activate-fill-in-mode/41204/1 "2025-01-22T02:21:51Z")

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Hello everyone!

I just simply want to activate the fill in mode on segmentation editor. I want to be able to draw a circle and get it filled automatically. I looked everywhere for instructions which all brinigng up Tool Options → Mode but i cannot fine the Tool Options. I even search in Settings and there is no User settings there. Anyone please who can help how, where can I activate the fill in mode or any other simple way to get a closed loop filled in on the Segmentation Editor?

Thanks in advance for the help.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [January 22, 2025, 2:24am UTC](https://discourse.slicer.org/t/activate-fill-in-mode/41204/2 "2025-01-22T02:24:11Z")

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This feature is provided by the `Draw` effect (works only on a single slice in 2D, allows freehand and polygon drawing) and `Scissors` effect (works in 2D - single or multiple slices - and also in 3D).