Optional
forceIgnore WunderbaumOptions.minExpandLevel.
Optional
immediateImmediately update viewport (async otherwise).
Optional
noDo not animate expand (currently not implemented).
Optional
noDo not send events.
Optional
resetUnload lazily loaded children if any (if collapsing).
Optional
scrollScroll up to bring expanded nodes into viewport.
Possible values for WunderbaumNode.setExpanded
options
argument.