# Segment Mesher - meshing parameters for older version

**URL:** <https://discourse.slicer.org/t/segment-mesher-meshing-parameters-for-older-version/15430>\
**Category:** Support\
**Created:** [January 10, 2021, 6:11am UTC](https://discourse.slicer.org/t/segment-mesher-meshing-parameters-for-older-version/15430 "2021-01-10T06:11:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![danpak94](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/danpak94/32/18310_2.png) [@danpak94](https://discourse.slicer.org/u/danpak94)\
**Post date:** [January 10, 2021, 6:11am UTC](https://discourse.slicer.org/t/segment-mesher-meshing-parameters-for-older-version/15430/1 "2021-01-10T06:11:34Z")

</div>

Hello,

I am trying to use Segment Mesher, and I am unable to adjust additional parameters other than “–scale 0.5 --multiplier 2 --grading 5”. e.g. I want to change try changing --feature\_scaling, --sampling\_rate, --element\_sizing\_method, etc. but I get an error if I try to add any one of these to “Cleaver meshing options”.

I am using Slicer 4.8.1 due to legacy code that only runs with this version of slicer, so I would really like to avoid having to upgrade to a newer slicer (which seems to have a different interface for setting these parameters).

For reference, the version I am using looks like this:  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/4/94ab8b2e3fc6dbd06eb944612a6f683d6b9b726d.png)

In summary: What are the three parameters “scale, multiplier, and grading”? (these parameter names don’t match with ones in [Redirecting…](https://sciinstitute.github.io/cleaver.pages/manual.html)). How can I adjust the cleaver parameters with their official names?

Thank you