You must have the Report Admin or Design Reports permission to use this feature.
Select REPORTS > Designer.
Report Designer provides a wizard that allows you to create new reports and dashboards from your data sources. You can design elements, change their attributes, and control all aspects of element presentation and layout. The Designer saves all attributes and related information in a template file in XML format. The Designer also supports visually building queries against multiple types of data sources and specifying data grouping, summarization and element data binding.
The Designer offers you the same functionality as an API, but makes most tasks, such as report layout, much simpler. You can also use the Designer to attach scripts to embed business logic into the report.