ZapWorks Studio's subsymbols allow you to define functionality that will be reused across the project, separately to the project's main root symbol.
As well as the ability to create your own subsymbols from scratch, Studio provides built-in subsymbols that allow you to add functionality to your project without having to build it yourself. These options can be accessed from the Symbol Definitions panel.
Many of the subsymbol templates are used in Studio's built-in project templates. These projects are a great way to see how the subsymbols can be used as part of a larger project.
Next article: Blank Symbols