Extension of G/L from chart of account to company code

Hello Gurus,

I created the G/l from INT chart of account to mine Chart of account by doing this all G/l from INT copied to mine COA.

But I want to extend all G/L from COA to company code I dont want to extend one by one manully.

Please let me know how to extend G/L from COA to Conpany code level in one shot .