How to set default carrier for all products based on language selection

[cnpark70]

I am running on 1.6.10 default bootstrap theme.

I was wondering if there is any option to set default carrier automatically for all products so I don't need to assign a carrier manually one by one.

Also, can I set default carrier for all products based on language selection?

Right now I am going in to each product and select carrier manually one by one and it's taking forever since I have products over 300.

Thanks in advance for your help.