| localEvents | Return the smalltalk events managed by instances of the receiver |
| allItemsDo: | Evaluate aBlock with all the reachable items of the receiver |
| expandAll: | Expands all visible items for a particular object collection (non flat mode) |
| flat | Set the receiver to be flat (no hierarchical view) |
| shrinkAll: | Shrinks all visible items for a particular object collection (non flat mode) |
| withAll:do: | Evaluate aBlock with all the (reachable) items containing objects |
| getContents | Receiver acquires contents |
| needsRoots | Receiver needs acquire root items |
| hasContents: | Receiver needs to test if item has children |
| needsContentsOf: | Receiver is about to render an item and asks for contents |
| needsTitleOf: | Receiver is about to render an item and asks for a title |
| makeupList: | - |