Quick Nav should offer a space specific search options and results

Quick nav is an awesome feature, but I think (and many of our users agree) that it would be even better if it was possible to take the current space into account when creating the quick nav result list.

There are two enhancements that could be done:

1) Offer a shortcut to do a regular search with the entered keyword but only in the scope of the current space
Quck nav always displays "Search for '<keyword>'" as the last item of the drop down menu. It would be great, it it also contained "Search for 'keyword' in <space key> wiki"

2) Display results from the current space in a separate result section
The results are now displayed in multiple sections (e.g. wiki pages, users, spaces, etc), it would be great if a new section was created containing only results from the current space. This section should be displayed as the first section.

These two features should be enabled only when a quick nav search is being done from a location in a wiki space and should be disabled when the location is the dashboard or other location outside of a wiki space

An extra suggestions: for the results from other spaces than the current one it would be nice to also see which space do these results come from.