Moving Rack Extensions to External SSD?

[kraftf]

Guys I know its an old thread but being a mac user having the same problem as many others I would to share my solution to this.
I tried also making symlinks to the rack extensions folders but it didn't work. I am using reason 12.
What did work though were symlinks for the data files inside the rack extension folders. So problem solved at least for a sample library that I tried which is super audio Cart(around 5 gbs)
Cheers