This addon is a plugin. You need to extract it to your /plugins folder to install it.
Set List is the fastest, easiest way to create a customized settings form for any extension that seamlessly connects to the Vanilla settings page. Extension developers can create a simple form by writing a basic INI file with absolutely no code changes. For more complex forms, developers only supply the form logic while Set List handles the work of settings display and saving. The best part is, extensions can make use of Set List forms but the presence of Set List is not required for those extensions to function normally.
Clean, correct HTML that looks exactly like the rest of Vanilla
Support for checkbox, text, textarea, select, file and hidden elements
Support for headers, labels, and descriptions
All text automatically registered with Vanilla's dictionary for easy translating
Form template is theme-aware and easy to re-design
All of squirrel's exhaustive documentation that you know and love