Certainly on the A320 there is an ETP page under the DATA menu. You can select any two airports and it will display a ring on the green line at the appropriate point. When I flew in Europe the ETP had little relevance at all due to the abundance of suitable airports everywhere.
Now that I frequently fly across the Pacific 'ETP's' become very, very important. The big difference though is at the flight planning stage ETP's are worked out taking into account, winds, fuel, engine out scenarios, depressurisations etc and a list of ETP's published for your flight in the form of LAT's and LONG's. These are then entered as new waypoints and placed into the flight plan. It is amazing how much these differ from the FMGS calculated position which assumes programmed winds and two engines operating.