Hello everyone !

I have a Collaborative Space (CS) - my material librairy - which contains a little bit more than 11k different materials. 

But, for a particular reason, I have to copy paste all of these materials to an other CS. I wonder if is there any method to do it ?

I was thinking to select all, export and import in the new CS but when I clicked on "Select all", it has selected "only" 200 materials ...