# Now missing from Slicer IGT? Choosing Locator Source

**URL:** <https://discourse.slicer.org/t/now-missing-from-slicer-igt-choosing-locator-source/17585>\
**Category:** Development\
**Tags:** registration, slicerigt\
**Created:** [May 12, 2021, 6:53am UTC](https://discourse.slicer.org/t/now-missing-from-slicer-igt-choosing-locator-source/17585 "2021-05-12T06:53:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![msimonc](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/msimonc/32/10762_2.png) [@msimonc](https://discourse.slicer.org/u/msimonc)\
**Post date:** [May 12, 2021, 6:53am UTC](https://discourse.slicer.org/t/now-missing-from-slicer-igt-choosing-locator-source/17585/1 "2021-05-12T06:53:56Z")

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Page 15 of the IGT tutorial “OpenIGTLinkTutorial\_Slicer3.6.2\_JunichiTokuda\_Dec2010.pdf”  
shows a “Visualisation / Slice Control” dropdown but it’s not there in the current version.  
How is this step now done? Thanks

 ![Screen Shot 2021-05-12 at 4.50.56 pm](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/c/bc6f0d6830b839920d9c3f4864eba6efaaccbbb0.png)

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**Author:** ![ungi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ungi/32/78573_2.png) [@ungi](https://discourse.slicer.org/u/ungi)\
**Post date:** [May 12, 2021, 2:37pm UTC](https://discourse.slicer.org/t/now-missing-from-slicer-igt-choosing-locator-source/17585/2 "2021-05-12T14:37:45Z")

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That tutorial is for a very old version of Slicer. Could you use a newer version? Most tutorials on this page are still usable, although they are also a few years old: [User tutorial | SlicerIGT](http://www.slicerigt.org/wp/user-tutorial/)