Reset Quiz/ Lesson Help

Hello, We are trialing a off grid education system to bring education to the remote areas of the pacific. We are currently trialing with 14 students in 6th grade using Kolibri.

The students have been using khan academy online and we just switched them to Kolibri offline.The students are use to being able to do assignments multiple times. We assigned there typically exercises as quizes so the teacher can grade their work.

I am wondering if there is a way to reset quizzes for students so they can retry it multiple times? Or is it just better to assign exercises are lessons.

We are using Rachel Computer device
Currently doing modules 4/5/6 6th Grade Eureka Math.

Any help is welcome thank you