The Sydney Toolbox plugin is meant to be used only with the Sydney WordPress theme.
This plugin registers custom post types and custom fields that are needed in the Sydney theme
- Go to Plugins > Add New and search for Sydney Toolbox. Install and activate it.
- That’s it. No configuration needed.
Plugin official website address
If you encounter problems in using the Sydney Toolbox plugin, you can comment below, and I will try my best to help you solve the problem