P41291-Landed Cost Revisions - Plus Amount

The "Plus Amount" field in P41291-Landed Cost Revisions always multiplies with the quantity of the receipt while doing OV.

Is there any way to make this "Plus Amount" added without multiplying the quantity ?

For example,

Current functionality:

Landed cost set up with Plus Amount = 100

Unit cost: 20

Qty = 30

So total cost = 20*30 + 100*30 = 3,600/-

Needed functionality:

For the same set up and same cost, for one OV, the total cost should be 20*30 + 100 = 700/-