You can make all elements within the System Modeler versionable. The Solution Explorer and Class View windows display the source control status of elements using the following signal icons:

Signal Icons

Signal icons indicate information about the status of your elements.

Checked In

Element is checked into a source control database.

 Checked Out Exclusive

Element is checked out from Source Control to one developer only. Other developers cannot access this element. Select a checked out element and select the context menu item, Source Control Properties to display information of the user who has the element checked out.

+ Pending Addition

An element is displayed with a plus (+) symbol that denotes a pending addition. The element is added to the source files list in the Pending Changes window.