Enterprise Architect (Sparx Systems) - add parameter name and type in parameter list -

I can not get the name of the parameter to show in the class diagram generated by 'Enterprise Architect' (sparks system). I'm trying to add an operation under

  + delayFight (numberOfMinutes: int): date  

but I add parameter name and type After, it is displayed as the Operation

  + delayFight (int): date  

to show it the parameter name to anyone How is forced?

Thank you

Find out how to do this.

Main menu

  diagram - & gt; Properties - & gt; Features - & gt; Show parameter details - & gt; (Full)