I see that macros are kept outside of the design in separate files.  That makes it convenient if it is desired to copy a macro for use in another application.  But the macro cannot be edited. 

There is no way to see what the macro is going to do. 

There is no way to make minor/major changes to it.  For a slight variation it will be necessary to completely record another macro.  It is not possible to do a cut/paste of a specific block of macro code.  I think that this is going to be a major problem for development work of applications.