How can i include the Timline or the Documents Part of the default overview page in my custom overview page?
Can someone provide the source of the auto-generated overview page?
As you are doing a Custom Overview page you might want to look at:
http://stackoverflow.com/questions/13201749/draw-simple-timeline-with-d3
Much nicer 
d3 can simply be added to your 7.x page as per the following example:
http://community.bonitasoft.com/project/d3-radar-graph-bonita-723
As for documents - no idea…
I don’t believe there is any specific source for any page. The pages are built up from templates.
regards
Seán
PS: While I understand this may not be the answer you are looking for I hope it answers your question, please mark as resolved by ticking the tick mark on the left of this reply so others now it is closed.
Yo busque en internet y encontre el mismo widget utilzado por bonita BPM…
https://github.com/rpocklin/angular-timeline
Este es el componente utilizado y se fabrico el widget para emular la funcionalidad de bonita overview page.
Unicamente se tomaron tareas humanas, pero si es necesario se pueden colocar las tareas de servicio ya que un cliente nos solicito explicitamente esto.