Common checkpoints during the project

Hi!

I am Julian, one of the scientific facilitators of Interactivos'14 :). It seems that the way the stories are going to be generated is quite linear and if they just have a common origin they may diverge a lot. Would it be possible to create common checkpoints in which all the stories overlap? It may be interesting to understand how the people get to these points having very different stories. 

Cheers,

Julián