[CentOS] CentOS 7 - Add a menu item.

I am kinda stuck. I want to add a menu item and like all previous versions
of Centos I used Alacarte without issue. In C7, it will not allow you to put
anything but a one name command. IE, firefox. You can not have something
like java -jar /opt/PROG/NAME.jar. It grays out the OK button as soon as you
put a space after java. 

Note if you edit a menu item that that has a space, it is also grayed out.

Any other way to add one>

Thanks - Doug