How can I map reaction using changing style in command line

I found the command line to mapreaction

./standardize in.smiles -c 'mapreaction'

./standardize -ha

  mapreaction                    add atom maps to reaction

                                 (default: complete, keepmapping)

    :complete                    map all atoms

    :matching                    map matching atoms of a reaction

    :changing                    map changing atoms of a reaction

    :keepmapping                 keep existing mapping

 

    :markbonds                   mark changing bonds

 

How can I add "changing" parameter to command line?

Here is an example:

> standardize -c "mapreaction:MappingStyle='CHANGING'" "CCCCN>>CCCCO"

CCC[CH2:4][NH2:5]>>CCC[CH2:4][OH:6]

You can always use the Standardizer Editor application to create a configuration and then export it to XML file or action string.