# To install extension "Sequence registration"

**URL:** <https://discourse.slicer.org/t/to-install-extension-sequence-registration/3864>\
**Category:** Support\
**Created:** [August 22, 2018, 1:47am UTC](https://discourse.slicer.org/t/to-install-extension-sequence-registration/3864 "2018-08-22T01:47:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kyu\_Sung\_Choi](https://avatars.discourse-cdn.com/v4/letter/k/b77776/32.png) [@Kyu\_Sung\_Choi](https://discourse.slicer.org/u/Kyu_Sung_Choi)\
**Post date:** [August 22, 2018, 1:47am UTC](https://discourse.slicer.org/t/to-install-extension-sequence-registration/3864/1 "2018-08-22T01:47:49Z")

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Dear Dr. @lassoan,

I want to use the extension “Sequence registration” to register 4D DSC images.  
**However, buttons on the panel look different from the manual** ([https://github.com/moselhy/SlicerSequenceRegistration](https://github.com/moselhy/SlicerSequenceRegistration)).

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/c/2/c234e08773af4e0f1b8acbe5e6c5dd5aee06eac1.jpeg)

Here’s mine.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/c/e/ce621c504c19a8813a04278f33d9e6abecf0afc8.png)

**Moreover, Input volume sequence seems to be not activated.**  
My Slicer is Slicer-4.9.0-2018-08-20-linux-amd64 version (latest nightly build),and Stable release (Slicer-4.8.1) shows also the same screen.  
_How can I fix it?_  
Thank you in advance!

BR,  
Kyu Sung

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<div class="post-metadata">

**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:** [August 22, 2018, 12:23pm UTC](https://discourse.slicer.org/t/to-install-extension-sequence-registration/3864/2 "2018-08-22T12:23:26Z")

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> [@Kyu\_Sung\_Choi](#):
>
> However, buttons on the panel look different from the manual

We continuously improve the module, but we don’t always update illustrative screenshots.

> [@Kyu\_Sung\_Choi](#):
>
> Moreover, Input volume sequence seems to be not activated.

You need to load volume in a Sequence node. You may have loaded your 4D data set as MultiVolume node. To convert a Multivolume node, save it to a file and when you load it again, choose “Volume sequence” in the “Add data” dialog.