Resources can have a host of different properties and custom defined properties if what we have built in doesn't suit your requires.
Resource properties can be set under the Properties tab of a resource. For detailed information on each property, click the ? Icons next to the property name for an overview.
Additional attributes that are built-in or created on your site's Custom Properties (if available) are available on the Attributes page.
If you want to update the properties of many resources at once, the multi-edit functionality will make this very easy. Here are some examples of the multi-edit tool in use: