Check out this tutorial that uses setmapping2:
For runscript, if the script name you provide is relative (does not start with /) then it should be in the directory of the current module. For example runscript myscript.cfg will look for JEVOIS:/modules/JeVois/SomeModule/myscript.cfg if SomeModule is the currently running module.
Or you can provide an absolute path, like
/jevois/mycript.cfg and then save the script in JEVOIS:/myscript.cfg