can anyone pls explain...

can anyone pls explain me the below concept?

A Prepayment has been fully applied to the invoice.
The Prepayment distribution has 1Item line, 1Tax line and 1Miscellaneous type line.

In this case, how will the Miscellaneous type line be applied to the Standard invoice?

 

I think Only Item types are

I think Only Item types are available for apply and the corresponding tax amounts are created automatically.