Using starting char with dialog is not perfect for me

But sometimes it would be useful to switch to the Quick Search mode with dialog so that I don't need to press 5-7 chars within 1ms

I have assigned a short cut to open the configuration dialog/Misc at once.
But then I still need to press TAB and Cursor Down because character with Search dialog option has no separate hot key

I would like to see a short cut for switching between two different quick search modes. Does anyone know a short cut for such a change?
Another very intuitive solution would be to use a search by pressing SHIFT where the first Quick search mode is active without SHIFT, and the second search mode is active by pressing SHIFT together.
1) Press letter like T to jump to first file starting with T.
2) Press SHIFT+T to open Quick Search dialog and jump to first file starting with T.
I don't know any people who uses short cuts which are only combined with modifier SHIFT. Such a direct swift would be great.
A separate option in Quick Search dialog would be really nice because some plugins are available like QuickSearch eXtended
> http://www.ghisler.ch/board/viewtopic.php?t=22592&highlight=quick+search
but I don't want to use always such complex search methods

Therefore a smart swift between easy and complex quick search would be great. ALT+F7 is still an option of course

Thanks and sorry for the large post