Collapse or expand all tree node

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Hi,   we want to be able to collapse or expand multiple tree nodes in one go. The treenodes are stacked, but if we could collapse all the top ones with a button that would be be great.    My idea was to make a button that toggles a boolean attribute of an Entity ‘CollapseExpandConfig’.  And then use the dynamic classes of the first stacked treenode to change the content-visibility. But then I would also have to make an on-click microflow to expand a single one after collapsing all, to make it visible again.   this all seems like a lot, and I was wondering if there is an easier or better way?
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