> For the complete documentation index, see [llms.txt](https://docs.imerit.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.imerit.net/labeling/labeling-editor-interface/medical-labeling-editor/fill-between-slices.md).

# Fill Between Slices

Fill Between Slices allows you to fill in the content between brush traces with a single click.

<figure><img src="/files/nGdrZwbDLvOdCb9Lh5wW" alt=""><figcaption></figcaption></figure>

## How to use Fill Between Slices

1. Ensure no classes are selected.
2. Click on the *Fill Between Slices* icon in the top bar. (<img src="/files/noxyuvfy0fWQFhiH1iGF" alt="" data-size="line">) Ango Hub will calculate the areas that will be filled. The areas to be filled will be displayed in a pink color.
3. Click on "Apply" if you wish to apply the changes, or exit the Fill Between Slices function to cancel.

While Ango Hub is calculating or applying Fill Between Slices, the Fill Between Slices and Apply controls show a loading state and cannot be clicked again. Wait for the operation to finish before changing slices or continuing to edit.