I have tried using this guide (https://docs.yworks.com/yfileshtml/#/dguide/folding#folding
) to get folding working, but when I click on the [+] or [-] nothing seems to happen at all.
I am using the HierarchicGrouping Demo as a basis and I have pulled in the all necesary code to get it working in my application, but the only difference is the styles of the nodes/groups/edge and then this folding functionality not working for me. I thought using the yfiles.styles.CollapsibleNodeStyleDecorator would allow folding by default without any special setup, but I must be doing something wrong.
Any help would be much appreciated