# One-handed use of the Model 01

**URL:** <https://community.keyboard.io/t/one-handed-use-of-the-model-01/3458>\
**Category:** Typing & Ergonomics\
**Created:** [December 30, 2019, 5:08pm UTC](https://community.keyboard.io/t/one-handed-use-of-the-model-01/3458 "2019-12-30T17:08:20Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![rogg](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/rogg/32/3100_2.png) [@rogg](https://community.keyboard.io/u/rogg)\
**Post date:** [January 7, 2020, 5:44am UTC](https://community.keyboard.io/t/one-handed-use-of-the-model-01/3458/21 "2020-01-07T05:44:20Z")

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> [@fire](#):
>
> This sounds amazing! How does it work? What triggers a layer switch - just whatever app is open?

The trigger is when an application gains focus, through alt-tabbing or any other mean.  
For more information about the tool, see there [https://community.keyboard.io/t/integrating-keyboard-io-with-the-os-windows/3331](https://community.keyboard.io/t/integrating-keyboard-io-with-the-os-windows/3331)

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