Lock Application---------->Ctrl + L
Log off------------------->Ctrl + O
Exit---------------------->Ctrl + X
Buses--------------------->Ctrl + B
Employee------------------>Ctrl + E
Route--------------------->Ctrl + R
Scheduling---------------->Ctrl + S
Calculator---------------->Crtl + C
NotePad------------------->Ctrl + N
Author-------------------->Ctrl + A
Usermanual---------------->Ctrl + M
Booking------------------->Ctrl + K
Passenger----------------->Ctrl + P
Payment------------------->Ctrl + T
Add New User-------------->Ctrl + L