Attached to the bottom and sides of the workspace are MPS tool windows. These secondary windows let you look at your project from different perspectives and provide access to typical development tasks. These include project management, source code search and navigation, running and debugging, integration with version control systems, and many other specific tasks.
Certain tool windows are available always, that is, in any project irrespective of the project nature, contents, and configuration. Other tool windows are available only if the corresponding plugins and/or facets are enabled. There are also tool windows that require certain specific actions to be made to become available. (For example, to make the Data Sources tool window available you have to create a data source.)
Around the tool windows (or the editor area if the tool windows are hidden) are the tool window button bars (or just tool window bars). These bars contain the buttons for showing or hiding the tool windows (tool window buttons). The tool window buttons also provide access to tool window context menus which are shown when the buttons are right-clicked.
Initially, there are three button bars, two at the sides of the main window and one at the bottom. You can show or hide all the button bars at once by clicking in the bottom-left corner of the workspace.
Each tool window button has the name of the corresponding tool window on it. On certain buttons, the window name may be preceded by a number, for example, 1: Project. This means that the keyboard shortcut Alt+<number>Alt <number> is available for showing or hiding the window. You can, for example, show or hide the Project tool window by pressing Alt+1Alt 1.
You can turn showing the window access numbers on the buttons on and off in the Appearance settings.
The buttons for visible tool windows and for hidden ones have different colors.
You can rearrange the tool windows by dragging-and-dropping the tool window buttons onto a different tool window bar (or to a different corner of the same bar). As a result, the tool window becomes attached to the bar you've moved the window button to.
Generally, all the tool windows are organized in similar way.
At the top of the window is a title bar. The title bar contains the buttons that control the tool window viewing modes and also the ones for hiding individual windows or all the windows attached to the same tool window bar.
The title bar also provides access to the tool window context menu. To access the context menu, right-click the title bar.
Underneath the title bar are the toolbar and content pane. Depending on the window, the toolbar may be above or to the left of the content pane.
The toolbar buttons, generally, are window-specific. However, the windows with similar purposes may contain similar controls on their toolbars.
In most cases, the function associated with a toolbar button may also be accessed from the main or context menu or may have a keyboard equivalent.
The content panes may be plain or contain two or more "layers" represented, for example, by tabs. There are also tool windows with the content pane part shown on a separate tab in the editor area.