Hi Dermot,

Currently easyblog built in composer does not have a function to create em-dash. However the em-dash can be created on the PC by holding down the ALT key and typing 0151 on the numeric keypad. Only the numbers on the right hand keypad do this, not the numbers above the letters. On the Mac, press Shift-Option and the minus key to make en em-dash.

Other alternative is that you can try to use tinyMCE editor where you can insert special characters such as em-dash, http://screencast.com/t/9xwCE3A86 .

Hope these help help.