HI,
You can't change or set install path for the things you have in the programData folder, even at initial install. It's a fixed path. You can only change VST2 paths and the standdalone application path. I would only recommend to change the plugin path, to install in afolder your host/ hosts read for the plugins.
As far as i know, then it's not recommended by anyone including Microsoft to move the programData folders or folders within that.
I believe it's possible, but it can give a lot of usage issues, and make it hard to get support, if you get issues. So unless you are a very exsperienced windows user and can support your self, then i would'nt relocate anything for the programData folder, and even then i don't think i would anyway.
I must say, that the more space Arturias applications take and the more applications there are, the more a possibility to change install paths is needed. Even if it's still not a huge amount of space it takes, then it's becomming quite a lot.
But i don't know, if the functionality will be harmed to much doing so.