Tax allocation accounting in R12

I have a question regarding the tax allocatiion to AP invoice lines.

In 11i Tax allocation at invoice distribution level uses the Item line accounting, when the allocation is performed from invoice distributions window using the allocation option. When the tax line is entered directly account defaulted is the one defined from the tax setup.

 

In R12 Tax allocation has changed. when the tax details are entered into the tax details window and Tax calcuation is done. Account populated for tax line is the account setup in tax definitions.

In R12 How can we have the tax accounting default with the matched line accounting.