QToolBox: how to have multiple items visible at the same time

Question

So far my QToolBox only alows me to have one element open/visible at the time.

How can the following be achieved? Is it possible by using a QToolBox?: Please see the image, the arrows show what I mean.

Answer 1

QToolBox only supports one current (visible) item.

You could achieve what you wish with a QTreeView and a suitable model.