Currently the system calculates the result of sale to the charterers for every bunker type. This is the TCO bunker adjustment.
But if a bunker type is not sold to charterers when other types are , there should be no TCO adjustment on the unsold type. And the valuation of this unsold bunker type shouldn't change.
This suggestion proposes to indicate whether a bunker type is to be sold and revalued or not sold and kept on it's FIFO price/composition.