Populate a drop down select list with the results from a view with entity reference relationships Ok. Perhaps this has been asked before  in this site somewhere but for the life of me I can't find an answer.

I have three content types: Client, Contact and Job ticket.

Clients are companies with whom I conduct business. Contacts are contact persons within these companies. The Contact content type has a reference field referencing their company's node. Job tickets are tickets for jobs these companies hire me to do for them. In this content type I have two reference fields: one for the Client and one for the Contact.

What I need is to have the Contact reference field (drop down select list) dynamically populated with the contacts for the client I chose in the Client reference field (another drop down select list). Because if I populate it with ALL the Contact nodes then I get a very big list and I don't know which contact belong to Which company.

I know I can do this with a entity reference view display but I don't know how to configure it.

Thanks in advance for your help.
Reference field option limit


  This module allows reference fields of several types to have their
  widgets' available options limited by the values of other fields in
  the current entity.


I think this link might already be enough.
If not, then I am happy to expand the answer with more specifics.