How do I expand and collapse mindmap trees in draw.io?

I saw on the web that it is possible to expand and collapse entire trees in draw.io mindmaps. It doesn’t seem to work for me, how can I activate this feature?

Hi there. It sounds like the Expand/Collapse option is not checked yet. By default, this feature is activated but you might have deactivated it in the past. Activating it again is simple, just go to Menu > Extras > Collapse/Expand. There’s a dedicated video for your specific question and an entire playlist on draw.io mindmaps on Youtube, so always feel free to visit our channel.