Need an Extremly Stripped Down GRBL Controller

I am looking for an application that can be used by basically anyone. I have a features list that it needs to have.

Load G-Code file
Step and Repeat function
Counter for the Step and Repeat function
Maybe a simple Calculator
A Home and a Start Button

I am attempting to use GRBL on a machine at work and need a hand. I need an operator to be able to select a file to cut. No one needs to see any of the code. I do not want Jog Buttons at all.

The step and repeat i was hoping to have a field...

Need an Extremly Stripped Down GRBL Controller