[Plugin: Events Manager Extended] How to display the event end date?

Please use the official forum for this:
http://www.e-dynamics.be/bbpress/

Also, in your case: you need to change the setting “single event formatting” to your liking by using any placeholders mentioned here:
http://www.e-dynamics.be/wordpress/?cat=25
The same goes for all other formatting settings (event list, locations, etc …). It needs some testing, but you’ll get the hang of it.