Navigate via keyboard

Please i have a problem
I want to create an indicator with numbers
I want a script when i press e.g button 2 to go to next frame with the number 1.And when i press the button 3 to play a moviecountdown to zero,but when i press several times the button 2 and the indicator goes to number 4 or 5 or 6 to play the countdown from these numbers from another frames.Can you help me please?