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You can expand and collapse parts of a tree to reduce the complexity of large class hierarchies. Expanding or collapsing branches of a tree has no impact on the functionality of other commands, like /. (See also Finding a Class.)
Collapsed branches are indicated with an ellipsis following the class name like in the example below.
| Collection | IndexedCollection... | Set | Dictionary
This command collapses the branch of the tree starting at the class the cursor is on.
This command expands the branch of the tree starting at the class the cursor is on. Both commands for collapsing and expanding branches are also available from the class’ object menu.
This command expands all collapsed branches in the tree.