A custom message to be shown to the user when the resource list is empty.
If true, the content of the picker will be read only.
If true, a "Affix" button will be visible on the toolbar of the picker UI.
If true, a "Filter" button will be visible on the toolbar of the picker UI.
If true, a "Show Internal" toggle will be visible on the bottom of the picker UI. If the toggle is on, internal resources will be displayed as well
If true, a "Unload" button will be visible on the bottom of the picker UI.
A struct that holds settings used to customize the resource picker UI.