Content picker sub-engine: could we close options by default as it was the case on Jahia 5. Very confusing UI currently

The current sub-engine interfaces is now expanding all advanced search options by default. As by default this lists always the same parameters, this looks like very confusing.

So could we hide all options as it was the case in Jahia 5 by default for the beta.

For the final, I am strongly in favour of reusing some advanced search form tag and to make available a more standard advanced search form as part of this engine rather than this "add new option" mechanism which is bringing confusion in regards of our other advanced search forms.