# What's the use of this block?

**URL:** <https://community.thunkable.com/t/whats-the-use-of-this-block/157209>\
**Category:** Questions about Thunkable X\
**Created:** [July 26, 2019, 11:29am UTC](https://community.thunkable.com/t/whats-the-use-of-this-block/157209 "2019-07-26T11:29:04Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![kartik\_old](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/kartik_old/32/28305_2.png) [@kartik\_old](https://community.thunkable.com/u/kartik_old)\
**Post date:** [July 26, 2019, 12:45pm UTC](https://community.thunkable.com/t/whats-the-use-of-this-block/157209/2 "2019-07-26T12:45:59Z")

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## Can the above block be used to do this? :

> [@How to Change the Stack\_Navigator title through Blocks](http://community.thunkable.com/t/how-to-change-the-stack-navigator-title-through-blocks/155308):
>
> Hello everyone, wave I have a screen named “Schedule” another is “Profiles” From Profiles screen, a message should go to Schedule screen that “Hey, show me profile of session1 speaker” - for 8 sessions. Now, schedule screen by-default has an image - the conference timeline. When it receives this message - “Hey, show me profile of session1 speaker” It should change the stack navigator title form Schedule to Profiles. How can I do this through blocks? Thanks! smile

Thanks! 😄

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