# Copy block changed in 3.8

**URL:** <https://www.ruby-forum.com/t/copy-block-changed-in-3-8/253642>\
**Category:** GNU Radio\
**Created:** [January 24, 2020, 1:27pm UTC](https://www.ruby-forum.com/t/copy-block-changed-in-3-8/253642 "2020-01-24T13:27:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ThunderGod](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/96bed5/32.png) [@ThunderGod](https://www.ruby-forum.com/u/ThunderGod)\
**Post date:** [January 24, 2020, 1:27pm UTC](https://www.ruby-forum.com/t/copy-block-changed-in-3-8/253642/1 "2020-01-24T13:27:36Z")

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I have a problem with gnuradio 3.8. Seem the copy block in GRC is changed. It has a radio button for enable/disable. Now I can’t put a for example “variable\_qtgui\_check\_box” to control it. Any help or example how to control the new block from GUI.

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**Author:** ![urbansumo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/3d9bf3/32.png) [@urbansumo](https://www.ruby-forum.com/u/urbansumo)\
**Post date:** [January 25, 2020, 2:05pm UTC](https://www.ruby-forum.com/t/copy-block-changed-in-3-8/253642/2 "2020-01-25T14:05:37Z")

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Can you please share your ruby code?

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**Author:** ![ThunderGod](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/96bed5/32.png) [@ThunderGod](https://www.ruby-forum.com/u/ThunderGod)\
**Post date:** [February 3, 2020, 9:39am UTC](https://www.ruby-forum.com/t/copy-block-changed-in-3-8/253642/3 "2020-02-03T09:39:13Z")

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Ruby code?  
What do you mean?  
I’m trying to say that the COPY block cant be controlled via GUI.  
At least I can’t find a way…