Creating G/L Accounts with Reference 
Use
You can create G/L accounts by using a G/L account master records as a reference. You can copy the G/L account master records from this reference company code and edit the data in your target company code before creating the master records.
When editing the copied G/L account master records, you can easily change the account numbers and names. To make additional changes to the G/L account master records, you can use the functions available for
collective and individual processing.Features
You have the following options:

The G/L accounts are only saved when you explicitly save them.
Activities
You can find the function for creating G/L accounts with reference in Financial Accounting Customizing under General Ledger Accounting ® G/L Accounts ® Master Data ® G/L Account Creation ® Create G/L Accounts with Reference. You can find specific instructions in the IMG documentation for this activity.