# open_split_tasks

### Description

@short: Enables the possibility to expand/collapse split tasks by clicking the +/- button

@signature: open_split_tasks: boolean

### Example

~~~jsx
gantt.config.open_split_tasks = true;
~~~

### Related samples
- [Expand and collapse split tasks](https://docs.dhtmlx.com/gantt/samples/04_customization/21_open_split_task.html)

### Details

![Expanding split task](/img/expand_split_task.png)

### Related Guides
- [Split Tasks](guides/split-tasks.md#expandingcollapsingsplittasks)