Question about %EDITW

I am attempting to use %EDITW to create a character field for a delimited file. 

Here is my test code:

D num             s             13p 2 inz(14.56)   
d neg             s             13p 2 inz(-14.56)  
d string          s             26a                
 /free                                             //  Result
   string = %editw(num:'-0          .  ');         //  STRING = '  
0000000014.56           ' 
   string = %editw(num:'0          .  -');         //  STRING = ' 0000000014.56 
           '  
   string = %editw(neg:'-0          .  ');         //  STRING = '  
0000000014.56           '  
   string = %editw(neg:'0           .  -');        //  STRING = ' 
00000000014.56-          ' 
   *inlr = *on;                                    
   return;                                         
 /end-free                                         
                                                   
I have two problems.

1. The first character of the number is blank when I want it to be zero. (Not 
the negative sign)
2. I can't get a leading negative sign.

Any ideas on how to get the leading negative sign to appear and other than 
%subst how do I get the leading zero to appear?

Thanks ahead of time.

Marvin