I think you are right. I managed to change the layout to "numbers only" and I figured out how to change the position (in "Z" plane). I'm almost certain that the issue is related to the position and the size of the keyboard.
Any tips what I should do to change the size?
I also want to change the Enter button functionality and label. I want this button to close Keyboard and change label to "BACK"
Thank you for your help.