Suggestion: Even more faster serach in the Index of Qt Assistant

The index in Qt Assistant is a really good help. I had an idea how you could improve the search speed even more.

Many index entries start with the same prefix:

I type: "QAbstr"

Now the whole list contains only entries with "QAbstract". In unix I
would now press the "Tab" key, and my entry get completed until the next
letter which is not clear. Because the "Tab" key is used in GUIs for
switching fields, Ctrl+Space would be nice - which is well known for
Programmer:

I type: "QAbstr"
I press: Ctrl+Space
Field completes to: "QAbstract"
I type: "I"
I press: Ctrl+Space
Field completes to: "QAbstractItem"
I press: "M"
Only one entry is left.
I press: Enter to jump to the entry.

The part which get completed if you press Ctrl+Space could displayed in
a light gray in the field.

If the entry is not clear, and you press Ctrl+Space. A drop down window
appears which lists just a smart list:

I type: "QLi"
I press: Ctrl+Space
A list with the following entries appears:

• QLibrary...
• QLine...
• QLinked...
• QList...

This list only appears if there are few (5 or below) entries. Otherwise
nothing happens.

Especially a nice feature in your new development environment.