0CHRT_ACCTS as compounding character for 0GLACCEXT

Hi experts,

I want to define 0GLACCEXT as a navigational attribute of 0GL_ACCOUNT.

Because I wanna use its hierarchy in reports.

0GL_ACCOUNT has 0CHRT_ACCTS as compounded characteristic. Example : Chrt Acct= INT, GL Account: 110000

Should I also define 0CHRT_ACCTS as compounding character for 0GLACCEXT.

If yes, should I fill it during extraction from 0gl_account_text ?

Or

Will it be filled already during extraction from 0gl_account_hier ?

Thnx.