In the customer view exists a history tab, that is invisible by default. Here is what the documentation wrote about it:
"the History tab (visible if you install other modules like crm) contains the history of all the events that the partner has been involved in. These events are created automatically by different system documents: invoices, orders, support requests and so on, from a list that can be configured in the system. These give you a rapid view of the partner's history on a single screen." (//doc.openerp.com/7.0/book/1/1_2_Guided_Tour/1_2_Guided_Tour_connect_openerp/#managing-partners)
Well, I installed crm and no history tab appeared in customer view. So how can a manage to show invoices, orders, calls and so on in the history tab? Where is the "list that can be configured in the system"?