# What does "Track Program Execution" check box do in Thread

**URL:** <https://forum.universal-robots.com/t/what-does-track-program-execution-check-box-do-in-thread/35659>\
**Category:** Technical Questions\
**Created:** [August 13, 2024, 2:25pm UTC](https://forum.universal-robots.com/t/what-does-track-program-execution-check-box-do-in-thread/35659 "2024-08-13T14:25:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dpeva](https://avatars.discourse-cdn.com/v4/letter/d/b5ac83/32.png) [@dpeva](https://forum.universal-robots.com/u/dpeva)\
**Post date:** [August 13, 2024, 2:25pm UTC](https://forum.universal-robots.com/t/what-does-track-program-execution-check-box-do-in-thread/35659/1 "2024-08-13T14:25:30Z")

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That checkbox exists in the Thread node.  
What does it actually do?

![image](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/2X/d/dad31c2877aa57f16494c98ffd5028490f79662d.png)

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**Author:** ![efn](https://avatars.discourse-cdn.com/v4/letter/e/35a633/32.png) [@efn](https://forum.universal-robots.com/u/efn)\
**Post date:** [August 14, 2024, 4:57am UTC](https://forum.universal-robots.com/t/what-does-track-program-execution-check-box-do-in-thread/35659/2 "2024-08-14T04:57:53Z")

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It tracks the program execution within that thread instead of your main sequence. 🙂  
When you execute a program, you can click on the arrow in the lower right corner to see which line is being executed.