When designing a template you often need to explore a query’s context and all its available attributes. You might need that in order to add another attribute to the output or to work with sibling queries.
Prior to RPE 2.0 your only option is to manually expand one node of the schema at a time until you reached your query. With RPE 2.0.1 you have a far simpler option: right click on the element holding your query and select “Go to schema” from the “Search” sub menu.
RPE will focus the appropriate data source schema in the Schema View and ensure the query is expanded and visible in the schema tree.