Page Picker: lang switching close all the opened pages again + open the first 2 or 3 levels by default, plz

I am trying to select an home page for one of my user (admin Center: end-user details). I opened the whole sitemap as it basically only display by default ACME (quite a limited default view!). Then I suddently see that I was in French and I switch to English. Bad chance. All my sitemap was closed again and I had to reopen all my levels manually.

So as already discussed:

• by default, the page picker (similr for file picker,....) should display the first 2 or 3 levels. Only displaying the root level is not really ergonomic.
• Ideally speaking, if the current end-user already opened some levels, its preferences should be serialized for later reuse. On a large web site with thousands of page, it could be quite useful to be able to reuse its already expanded sitemap. Clicking on the small arrow is nice, but after 15 minutes of doing it, you start becoming quite angry after the Jahai system!
• Language switching should never impact the current opened paths of the current tree.