Changing states of multiple objects across multiple slides

Hi

I need assistance with a project I am working on. On slide A i have a selection of check boxes that you use to choose where you want to start in the course. Once you have finished the first section you are taken to slide B which lists all the sections in the training so that the learner can select the next module they would like to view. 

I would like to change the state of the object on slide B that represents the selection they made on slide A but don't know how to do this? So in essence I want to reflect the choice that was made on Slide A on Slide B so they can see that they have completed a module. 

Any ideas?

Thanks. 

Leanne Falconer