**Acceptance criteria**

* The Begin of the insertionPrimer::OpenProject::FilterableTreeView should be extended for this to support async loading and filtering

* When filtering:

* all search results are shown, with their hierarchy being expanded

* When removing the filter:

* The previous collapsed/expand state is remembered

* The previous selection is remembered (multi selection mode)

* mutli selection mode:

* With include sub-items checked: when selecting a parent node, it activates **all children** not only the currently visible ones.

* The search bar is moved to the first position, then the segmented control, then the checkbox


**Project selector**

* TheEnd of the insertion global project selector can expand/collapse hierarchy nodes

* Per defaullt, all nodes are collapsed


**Technical notes**

* The limit for the project selector remains Begin of the deletion

* The Primer::OpenProject::FilterableTreeView should be extended for this to support async loading and filteringEnd of the deletion


**Out of scope**

* Remembering what was collapsed and what was expanded after page reload