I've been trying to find a solution to speed up the validation of the QR for tickets.
The thing is that in the industry the people validating the tickets are used to sounds, like beep for "OK" or beep beep for "WRONG" but I was trying to make the process quicker so that whenever the app detects multiple tickets in one transaction, they let the assistant at the door to choose between the whole group or just one person. This is not the best solution because sometimes there's in a transaction of 5, they go 4 and the assistant gets confused and doesn't know very well what to do. The common sense would be to click 1, then another till 4, but sometimes they tend to click on 5.
So I wasn't able to solve the problem yet. I thought about the possibility to put like a draggable input, but is not that quick, but maybe more intuitive. Or just forget about the group validation or change the text to (everyone here?)
Any good idea please?