# Hide segments during segmentation

**URL:** https://discourse.slicer.org/t/hide-segments-during-segmentation/5493
**Category:** Support
**Created:** [January 24, 2019, 2:06pm UTC](https://discourse.slicer.org/t/hide-segments-during-segmentation/5493 "2019-01-24T14:06:04Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ANTEA\_DESTRO](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@ANTEA\_DESTRO](https://discourse.slicer.org/u/ANTEA_DESTRO)
#### Post date: [January 24, 2019, 2:06pm UTC](https://discourse.slicer.org/t/hide-segments-during-segmentation/5493/1 "2019-01-24T14:06:04Z")

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Hi!

I am working on T1 weighted images of lower leg muscles and I am manually doing the segmentation where each muscle I am interested in corresponds to a segment.

I opened the saved file .mrml but when I want to hide a segment by closing the little eye, it does not disappear. Moreover, it is not possible to delete errors in the drawing in order to improve the precision of the segmentation.

 ![1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/c/5/c5d6b24f8b00d193ebea38709c866b9c1bcdd70f.png) I tried to restart 3DSlicer but nothing happens.

I attached two screenshots so the problem may be better understandable.  
How can I fix this problem?

Thanks for your help,

Antea

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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 24, 2019, 9:20pm UTC](https://discourse.slicer.org/t/hide-segments-during-segmentation/5493/2 "2019-01-24T21:20:46Z")

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Probably you have multiple segmentations. You can see all the segments in all segmentations at the same time if you go to Data module.