No, the law does not permit the splitting of credit balances on a 3a account among several 3a accounts. Partial withdrawals are only possible for residential property. In all other cases, only the entire balance can be withdrawn at once. If you would like to be able to withdraw retirement assets in stages at a later date, you must therefore open several 3a accounts.
Can one 3a account be divided between several 3a accounts?
3a Retirement Savings Foundation