Keep Track previous X input selections

We need a visual tracker that shows the outcome of the last X (lets say 50) selections made by single user on an external display. The tracker should run on Windows 10 7" mini-pc/tablet plugged into a external HDMI display. The touchscreen will only show a keypad with 9-10 options to choose from (represented by icons/images) and a user will make ongoing selections. The external display will show a mostly static layout (design and graphics provided by us) and include a chart (lets say 10x5) showing last X selection icons/images. Each new selection is added to the end of the chart and moves all previous results up one position. A second chart shows the occurrence % for each selection on the first chart. There should also be a secure admin/setup screen that allows limited adjustments to external display (change background color/Change some of the text/change logo image).