Power Cards Spell List Issue

Not sure if I am just dense or what.  But the PC wiki stats that your can add an attribute to a character with the name spell_SPELLNAME_MACRO and #Macro in the value field and then when using the --spell_list tag the API button will automatically search for and replace the macro with your self-made macro.  I have done this but I cannot get the API button to call my macro it always just uses the build-in.  Any thoughts?

You might want to look up the Power Cards thread in the API forum.  People that use it (and the Power Cards maintainer) are sure to see your question that way.