Filter/search field above navigation window

[ghost]

It would be nice to have a filter/search field above the navigation bar which does the following: When a string/text is entered in the field, only database items (of the open database) are displayed which contain the entered string. This would make it even faster to find database elements and make the drag and drip function more useful. Basically, the filter should work like the filter that opens up when clicking on the green circle with the white plus when adding a flow to the Inputs/Outputs table of a process ... just for all database items and the results are displayed directly in the navigation window.