> For the complete documentation index, see [llms.txt](https://mobsted-2.gitbook.io/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction.md).

# Intro (placeholder)

- ["Hello world of PWA!" app](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/hello_world_of_pwa_app.md)
- [Testing the App](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/testing_app.md)
- [How to hide / show screen elements](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/hide_show_screen_elements.md)
- [Create user actions: switch screens, change data and make API calls](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/actions.md): React to user actions
- [Screens](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/screens.md)
- [Show any platform Data in app ellements](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/display_any_user_and_platform_data.md): Display any user & backend data
- [Showing Data in app - Filters](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/use_automatic_data_filters.md): Use automatic data filters
- [Loops - display multiple line results in app](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/apply_loops_to_screen_elements.md): Apply loops to screen elements
- [Automating Business Processes & Funnels via Triggers](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/automate_with_triggers.md): Automate with triggers
- [Send and Receive data via external API integrations](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/use_any_internal_and_external_api.md): Use any external & internal API
- [Chaining API calls](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/chaining_api_calls.md): Complex filters & API calls
- [Use MathJS formulas](https://mobsted-2.gitbook.io/knowledge-base/basics/introduction/use_math_formulas.md)