Documents
A document refers to a file that you view in the central work area.
Examples of documents include text-based source files, graphical form design files, application flow diagrams, report design documents, and more. When you open a document, it opens in the central work area; it is not in a view that you can re-locate or undock.
View two documents simultaneously
By default, when you open two or more documents, one document has the focus and sits on top of the others. You switch between documents by clicking the appropriate tab.
If you wish to view two documents side-by-side, right-click on the tab and select Move document to other view. You can repeat this process to relocate additional documents to the new location.
To move the document back to its original location, right-click on the tab and (once again) select Move document to other view. The document will move back to its original location. When you have done this to all documents that you may have moved to the second location, you again are presented with the default, where a single document has the focus and sits on top.