Priority Sequencer Queuer

I am attempting to create a queueing system similar to the LED display at the DMV. The difference is i would like to have 4 push buttons and a 7 segment. It would work so that one button would be pressed, a number be popped up and once the number has been "taken care of" any other button can be pressed. Lets say there were 4 stations and station 4 was open, button is pressed and 4 comes up on the screen. Once 4 is dealt with, a button is pressed to erase 4 and make room for another number. But only 1 button number can be displayed at a time until cleared. Any codes for this????

Christian_mccormick:
Any codes for this????

Not off the shelf, I doubt it.

Show us what code and circuit you have so far.

JimboZA:
Show us what code and circuit you have so far.

I am new to the Arduino community and am unsure of where to start.

Do you have any hardware selected yet?

CrossRoads:
Do you have any hardware selected yet?

5 pushbuttons and a 7 segment LED

Electrically, the connections are pretty simple.