keyboard shortcut to go to the input box quickly ?

[ghost]

and either a tooltip on input box or a menu entry, where to write that shortcut so that ppl can know about it

[wojdyr]

It may work if you just start typing (or press, say, space).

[ghost]

That's neat! it works but not from every situation. For example not after clicking in the right side pane on the bottom window or the space below it.