**Acceptance criteria**

* The Begin of the insertionglobalEnd of the insertion project Begin of the insertionselector can expand/collapseEnd of the insertion Begin of the deletion list has a split layout

* Left: TreeView with the projectEnd of the deletion hierarchy Begin of the insertionnodes

End of the insertion Begin of the deletion

End of the deletion * Begin of the insertionPer defaullt, all nodes are collapsed


End of the insertion Begin of the deletion Collapsed per default

* Clicking on the name of a project, leads you to that project

* Open: Should the treeview respect the currently active filters?

* Right: The unchanged project table 


End of the deletion **Technical notes**

* Begin of the insertionThe limit for the project selector remainsEnd of the insertion Begin of the deletion Use Primer::Alpha::LayoutEnd of the deletion

* Begin of the insertionThe Primer::OpenProject::FilterableTreeViewEnd of the insertion Begin of the deletion Use the same logic and style we have for example for CF of type hierarchy


**Permissions and visibility considerations**

* _Only projects visible to the userEnd of the deletion should be Begin of the insertionextended for this to support async loading and filteringEnd of the insertion Begin of the deletion shown_End of the deletion


**Out of scope**

* Begin of the insertionRemembering what was collapsed and what was expanded after page reloadEnd of the insertion Begin of the deletion Changing the left side menuEnd of the deletion