How to Import Virual Instruments (.Cst) Settings from a Mac to Another One for Garageband ?

Hi,

I am a GB user for a long time now, and i am trying to move all my project to a new computer. Problem is : I definitely didn't find out how to re-install the original settings I made for a lot of virtual instruments. These settings are saved on my old Mac on : /Library/Application Support/Garageband/Instruments/Software, as .cst files. But just copying these files from Mac 1 to Mac 2 doesn't work. Do you know the right way to do it? Many thanks?

B.