Change Exif with scripting

If the scripting function is able to read exif values via exifTool, is it then also be possible to write the exif values via exifTool, like this:
item.exifToolValue("CreateDate")= '2022:01:01 12:00:00+02:00' (that is exactly the kind of string I can read from an image)

If not, is there a way I can put an exif write function in the scripting?
The new write metadata write function needs too much work done by hand.

Advanced Renamer only implements read access via ExifTool. For write access you will need the stand-alone version of ExifTool.

Whilst you can't call ExifTool from ARen JavaScript you can combine calls to both ARen and ExifTool into a single Windows batch file.