Well, actually I know all the keyboard shortcuts. It is just listed when you select
Optinons>Controls>Assignments...
My problem is that, I try to re-define these commands so that they are easier to use (i.e instead of pressing "Ctrl+Shift+R" for airspeed select, I would like to press just "R" for this), but I could not find the entry for the IAS adjust selector keyboard shortcut (I mean the list under Optinons>Controls>Assignments..., it is listed in the kneeboard and works however (but I cannot re-define them by using the kneeboard)).
As Fozzer mentioned I checked the kneeboard and noticed a strange thing. It nicely lists all the shortcuts, and it is not a static text, when I redifine a key it updates this information, everything normal up to this point, then I re-define the altidute hold key to "I" but this is still listed as "Ctrl+Z" in the kneeboard and altitude hold shortcut is allways "Ctrl+Z", I cannot change it.

Sometimes it is necessary to adjust a radio, OBS etc. while in a turn or during approach, and I don't want to leave my hand off the joystick, that's why I want to eliminate the mouse. It is not rare that I had to land on the taxi ways ;D