| bHasSelectAll | bool | Whether a select-all checkbox is shown at the top of the tree panel. | Category: B1CheckBoxTreeWithSelectAll |
| SelectAllLabel | FString | Text ID for the select-all label shown when bHasSelectAll is true. | Category: B1CheckBoxTreeWithSelectAll |
| PanelTitleId | FString | Text ID for the panel title displayed above the checkbox tree. | Category: B1CheckBoxTreeWithSelectAll |
| PanelDescriptionId | FString | Text ID for the panel description displayed in the checkbox tree panel. | Category: B1CheckBoxTreeWithSelectAll |
| Roots | TArray | List of root nodes that form the top level of the checkbox tree. | Category: B1CheckBoxTreeWithSelectAll |