Hello,
I have a collapsible list that I am populating with a REST service which works nicely. Now I would like to nest another collapsible list inside the first and also populate it with a REST service based on the header value of the selected header. I have tried many tricks and the best I have done is to use a get focusrun javascript where I get the header value, but only of the first (top) box. I also tried adding a label in the header but it make the collapsible list go away and only listed the values returned from the REST service.
If you have more documentation on the collapsible list or a tutorial, that would be great.
Thanks