Is there anyway to use normal computer keyboard to input FMC (eg. for LevelD 767 if you press mouse in the upper left corner then your pc keyboard will be able to input into FMC)....anything similar for 747 for FSX??

Please use your real name for posts in this forum, just one of the few rules.Keyboard entry in the 747 can be done by using the mouse (click on the right side lower half darkened rectangle of the CDU) or by setting a keyboard command in the PMDG options menu. When in KYBD mode, it will be annunciated on the lower right side of the scratchpad area.Just a note, numbers cannot be entered from the numberpad, you got to use the numbers above qwerty.Hope this helps, and welcome!