Is it possible to automatically declare a method into header file(.h) in appCode?

I have using appCode trial version.
I want to automatically be declared a method into heder file by  appCode's some feature, when I write a method in @implementation file.
ex) I write a method in @implementation file.

@implementation myClass
- (void)testMethod{
}
@end

automatically declare a method into @interface file.

@interface myClass
- (void)testMethod;  <== automatically insert.
@end

How to automatically declare method into header file by appcode's feature?