WM-PP interface: issue via MIGO only quantities with WM-Transfer Order confirmed

Hi all,

in my scenario we have set up the WM-PP interface using the PSA.

I've this doubt:

1. I've created a Production Order who will consume 10 quantities of the item A, B and C in order to create the header item X
2. a WM-Transfer Request is automatically created with 3 different position (A, B and C)
3. I've converted the TR into a WM-Transfer Order not confirmed
4. I've confirmed only the first position of the TO (item: A)
5. launching the MIGO (Good Issue - Order - Mov. Type 261) the system show me all the 3 items (A, B and C)

Why is possibile to logically consume all the position of the Production Order even if just one position of the related WM-TO is confirmed?

Is possibile, by standard SAP capabilities, to show in MIGO only the item related to confirmed position of the related WM-TO?

Thanks in advance