How do I expand or collapse items in the Gantt chart?

You can now expand or collapse items within the Gantt view depending on your requirements.

This expand and collapse items will be found at the top of the Gantt Chart next to the Grid Start Date. 
This will change the view from showing just Stage items when collapsed and all items when expanded. The default setting is the expanded view. 

To understand how to expand or collapse items in the Gantt Chart view, please watch this explainer video: