추가

Here you can add things to your notes.

가져오기

Here you can import existing files into your documents. Supported are Butterfly documents, Markdown, PNG, SVG, and PDF.

도구

To add tools to your toolbar, click them. Read more about them here.

Surfaces

These are special tools to create surfaces.

작업

These are tools that will be executed by clicking on them. You can use the play button to execute them without adding them to the toolbar.