WordPress plugin customisation

I am using a Quiz plugin that works fine (only about 11 questions and it has a working leaderboard all on a client's server) - but I need a 'running score' to show correct answers during the Quiz - rough visual example attached.

This is the plugin:
https://wordpress.org/plugins/quiz-maker/

And this is the working quiz:
https://falcoconstruction.co.uk/competition/

Dev
D3vel0p3r!

Thanks