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In module view, the **Application Tree** dialog displays your procedures according to the source code document which they reside in. A procedure is a collection of instructions--Clarion language statements--which perform a task. The first procedure your application executes is called "Main" by default.

The tree controls in this dialog illustrate how the procedures reside in each separate file. Within each, they branch from each other when parent and child procedures reside in the same file.

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When you right-click on any procedure and select **Module** from the pop up menu, the Editor stores certain information about the files you open to edit. This is a productivity aid; it remembers the line number you were last at, and so if a file is opened, positioned to a certain line number, closed, then reopened, you are now back at the line where you were last positioned.