# G4P library with GUI builder - Can I make Sliders in an Child applet?

**URL:** <https://discourse.processing.org/t/g4p-library-with-gui-builder-can-i-make-sliders-in-an-child-applet/25646>\
**Category:** Libraries\
**Created:** [November 23, 2020, 9:57pm UTC](https://discourse.processing.org/t/g4p-library-with-gui-builder-can-i-make-sliders-in-an-child-applet/25646 "2020-11-23T21:57:45Z")\
**Posts on this page:** 1\
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**Author:** ![laptophead](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/laptophead/32/2701_2.png) [@laptophead](https://discourse.processing.org/u/laptophead)\
**Post date:** [November 24, 2020, 5:46pm UTC](https://discourse.processing.org/t/g4p-library-with-gui-builder-can-i-make-sliders-in-an-child-applet/25646/8 "2020-11-24T17:46:01Z")

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Someone recommended this above

> [@G4P - Checkbox grid](https://discourse.processing.org/t/g4p-checkbox-grid/25585/11):
>
> This is quite simple and does not require you to modify the CheckboxGrid class. Simply create the GWindow, add a draw handler with a background statement and pass the reference to the new window in the CheckboxGrid constructor. This is a modified version of my previous example. It will create 2 extra windows and 3 CheckboxGrids, one for each window. import g4p\_controls.\*; // Demonstration of a 2D grid of checkboxes. The size of the grid is user defineable. // CheckboxGrid cbg0, cbg1, cbg2; …

Is that a good example to start with for multi windows?

Thanks

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