Change Text Label via UI Button

The storeInFile is telling Node-Red to store the data in a file so the data will be persistent across reboots and redeploys.
That is based on info from here: A guide to understanding 'Persistent Context'
Basically what i'm trying to do is create a button that my kids press when they do a chore (ie dishes,etc) and keep track of who has done it and who is next up. I want the Text Label to show who is next up based on the logic of who pressed the button (who is currently showing as next up) and who should show next. Maybe this isn't the right approach. If there is a better way, i'm certainly open other options.

Thanks