This installer is switchless, and therefore doesn't give you the possibility to choose what you want to install. But you can still extract its content, and run the msi file to do a custom install. What's more, if you think some files are useless, you can also delete them and modify the msi file, I would be glad to test a new one. In this one, only the dictionaries were removed, except DE/FR/EN/ES (I removed them because they were taking up much room, and if you need some dictionaries in Arabic or Russian, well, maybe this installer won't fit your needs). I removed the path of the dictionaries in the installer, but the option to install them is still present, if you choose the custom install don't try to tick the box of these dictionaries, or the installer will have weird behaviors (it will ask for the missing files).
Don't forget to watch the clip of PNL (link above).